blocklaying, bricklaying and concreting -...

ED/STV/2001/PI/1

Blocklaying, Bricklaying and Concreting National Technical Certificate (NTC) and Advanced

National Technical Certificate (ANTC)

Curriculum and Course Specifications

NATIONAL BOARD FOR TECHNICAL EDUCATION

Federal Republic of Nigeria

UNESCO – Nigeria Project

2001

Blocklaying, Bricklaying and Concreting - National

Technical Certificate (NTC) and Advanced National

Technical Certificate (ANTC)

NATIONAL BOARD FOR TECHNICAL EDUCATION

NATIONAL TECHNICAL CERTIFICATE AND ADVANCED NATIONAL TECHNICAL CERTIFICATE

PROGRAMMES

AUGUST 2001

NATIONAL AND ADVANCED NATIONAL TECHNICAL CERTIFICATE PROGRAMMES

2

Table of Contents

General Information ..................................................................................................................................... 3

Curriculum Table (NTC)............................................................................................................................... 7

Curriculum Table (ANTC)............................................................................................................................. 8

Basic Construction Management I................................................................................................................ 9

Introduction To Building Construction......................................................................................................... 16

Building Drawing and Design I ................................................................................................................... 26

Bricklaying ................................................................................................................................................. 33

Blocklaying ................................................................................................................................................ 56

Concreting ................................................................................................................................................. 85

Wall, Floor and Ceiling Finishing .............................................................................................................. 103

Advanced National Technical Certificate Courses .................................................................................... 119

Building Science I ................................................................................................................................ 119

Building Science II ............................................................................................................................... 124

Basic Construction Management II....................................................................................................... 131

Building Drawing and Design II ............................................................................................................ 146

Advanced Brick and Blocklaying .......................................................................................................... 162

Advanced Concrete Work .................................................................................................................... 174

Components and Finishes ................................................................................................................... 180

List of Materials and Equipment ............................................................................................................... 185

List of Participants ................................................................................................................................... 186

3

General Information

AIM:

To give training and impart the necessary skills leading to the production of craftsmen, technicians and other

skilled personnel who will be enterprising and self -reliant.

ENTRY QUALIFICATIONS

CRAFT PROGRAMME

Candidates must not be less than 14 years of age and should have successfully completed three years of

Junior Secondary education or its equivalent. Special consideration may be given to sponsored candidates

with lower academic qualifications who hold trade test certificates and are capable of benefiting from the

programme.

ADVANCED CRAFT PROGRAMME

Candidates should possess the National Technical Certificate or its equivalent and should have had a

minimum of two years post qualification cognate industrial experience.

THE CURRICULUM

The Curriculum of each programme is broadly divided into three components:

(a) General Education, which accounts for 30% of the total hours required for the

programme

(b) Trade Theory, Trade Practice and Related Studies which account for 65% and

(c) Supervised Industrial Training/Work Experience, which accounts for about 5% of the total

hours required for the programme. This component of the course which may be taken in

industry or in college production unit is compulsory for the full-time students

Included in the curriculum is the teacher’s activity and learning resources required for the guidance of the

teacher.

4

UNIT COURSE/MODULE

A Course/Module is defined as a body of knowledge and skills capable of being utilized on its own or as a

foundation or pre-requisite knowledge for more advanced work in the same or other fields of study. Each

trade when successfully completed can be used for employment purposes.

BEHAVIOURAL OBJECTIVES

These are educational objectives which identify precisely the type of behaviour a student should exhibit at

the end of a course/module or programme. Two types of behavioural objectives have been used in the

curriculum. They are:

(a) General Objectives

(b) Specific learning outcomes

General Objectives are concise but general statements of the behaviour of the students on completion of a

unit of work such as understanding the principles and application.

(a) Orthographic projection in engineering/technical drawing

(b) Loci in Mathematics

(c) Basic concepts of politics and government in Political Science

(d) Demand and Supply in Economics

Specific Learning Outcomes are concise statements of the specific behaviour expressed in units of discrete

practical tasks and related knowledge the students should demonstrate as a result of the educational

process to ascertain that the general objectives or course/programme have been achieved. They are more

discrete and quantitative expressions of the scope of the tasks contained in a teaching unit.

GENERAL EDUCATION IN TECHNICAL COLLEGES

The General Education component of the curriculum aims at providing the trainee with complete secondary

education in critical subjects like English Language, Economics, Physics, Chemistry, Biology,

Entrepreneurial Studies and Mathematics to enhance the understanding of machines, tools and materials of

their trades and their application and as a foundation for post-secondary technical education for the above

average trainee. Hence, it is hoped that trainees who successfully complete their trade and general

education may be able to compete with their secondary school counterparts for direct entry into the

polytechnics or colleges of education (Technical) for ND or NCE courses respectively. The Social Studies

component is designed to broaden the trainee’s social skills and his understanding his environment.

For purpose of certification, only the first three courses in Mathematics will be required. The remaining

modules are optional and are designed for the above average students.

5

NATIONAL CERTIFICATE

The NTC and ANTC programmes are run by Technical Colleges accredited by NBTE

NABTEB conducts the final National Examination and awards certificates.

Trainees who successfully complete all the courses/modules specified in the curriculum table and passed

the national examinations in the trade will be awarded one of the following certificates

S/NO LEVEL CERTIFICATE

Technical Programme

1 Craft Level National Technical Certificate

2 Advanced Craft Level Advanced National Technical Certificate

GUIDANCE NOTES FOR TEACHERS TEACHING THE CURRICULUM

The number of hours stated in the curriculum table may be increased or decreased to suit individual

institutions’ timetable provided the entire course content is properly covered and the goals and objectives of

each module are achieved at the end of the term

The maximum duration of any module in the new scheme is 300 hours. This means that for a term of 15

weeks, the course should be offered for 20 hours a week. This can be scheduled in sessions of 4 hours in a

day leaving the remaining hours for general education. However, (properly organised and if there are

adequate resources), most of these courses can be offered in two sessions a day, one in the morning and

the other one in the afternoon. In so doing, some of these programmes may be completed in lesser number

of years than at present.

The sessions of 4 hours include the trade theory and practice. It is left to the teacher to decide when the

class should be held in the workshop or in a lecture room.

INTEGRATIVE APPROACH IN THE TEACHING OF TRADE.

Theory, Trade Science And Trade Calculation

The traditional approach of teaching trade science and trade calculation as separate and distinct subjects in

technical college programmes is not relevant to the new programme as it will amount to a duplication of the

teaching of mathematics and physical science subjects in the course. The basic concepts and principles in

mathematics and physical science are the same as in the trade calculation and trade science. In the new

scheme therefore, mathematics and physical science will be taught by qualified persons in these fields and

the instructors will apply the principles and concepts in solving trade science and calculation problems in the

6

trade theory classes. To this end, efforts have to be made to ensure that mathematics and science modules

required to be able to solve technical problems were taken as pre-requisite to the trade module.

EVALUATION OF PROGRAMME/MODULE

For the programme to achieve its objectives, any course started at the beginning of a term must terminate at

the end of the term.

Instructors should therefore device methods of accurately assessing the trainees to enable them give the

student’s final grades at the end of the term. A national examination will be taken by all students who have

successfully completed their modules. The final award will be based on the aggregate of the scores attained

in course work and the national examination.

7

Curriculum Table (NTC)

CURRICULUM TABLE COURSE HOURS/WEEK

PROGRAMME: NATIONAL TECHNICAL CERTIFICATE IN BLOCKLAYING, BRICKLAYING AND

CONCRETING

YEAR 1 YEAR 2 YEAR 3

Term

1

Term

2

Term

3

Term

1

Term

2

Term

3

Term

1

Term

2

Term

3

Module

Code MODULE

T P T P T P T P T P T P T P T P T P

TOTAL HRS

FOR EACH

CMA11 Mathematics 2 - 2 - 2 - 2 - 2 - 2 - 2 - 2 - 2 - 216

CPH 11 Physics 2 - 2 2 2 - 2 1 2 1 2 1 2 1 2 1 2 1 288

CCH 11 Chemistry 2 - 2 - 2 - 2 1 2 1 2 1 2 1 2 1 2 1 288

CEN 11 English Language 2 - 2 - 2 - 3 - 3 - 3 - 3 - 3 - 3 - 288

CEC 10 Economics 2 - 2 - 2 - 2 - 2 - 2 - 2 - 2 - 2 - 216

CTD 11 Technical Drawing - 2 - 2 - 2 - - - - - - - - - - - - 72

CTD 12 Descriptive Drawing - - - - - - - 2 - 2 - 2 - - - - - - 72

ICT 10 Intro To Computer - - - - - - 1 2 - - - - - - - - - - 36

ICT11 Comp Application I - - - - - - - - 1 2 - - 2 - - - - - 36

ICT 12 Comp Application II - - - - - - - - - - - - - - - - 1 2 36

ICT 13 AUTOCad I - - - - - - - -- - - - - 1 2 - - - - 72

ICT 14 AUTOCad II - - - - - - - - - - - - - - 1 2 - - 36

CBM 10 Entrepreneurship - - - - - - - - - - - - 2 - 2 - 2 - 36

CBC 1I Introduction to

Building Const.

2 1 2 1 2 1 - - - - - - - - - - - - 108

CBM 12 Basic Const. Mgt I - - - - - - - - - - - - - - 3 - - - 36

CTD 14 Building Drawing - - - - - - - - - - - - - - - - - - 60

CBC 12 Bricklaying 2 8 2 8 2 10 - - - - - - - - - - - - 384

CBC 13 Blocklaying - - - - - 2 10 2 10 2 8 - - - - - - 408

CBC 14 Concreting - - - - - - - - - - - - 2 8 2 8 - - 240

CBC 15 Wall, Flooring and

Ceiling

- - - - - - - - - - - - - - - - 2 10 144

Total 14 17 14 22 14 19 11 18 11 18 11 18 13 14 13 14 10 18 3,180

8

Curriculum Table (ANTC)

ADVANCED NATIONAL TECHNICAL CERTIFICATE PROGRAMME

IN BLOCKLAYING, BRICKLAYING AND CONCRETING

YEAR 1

Term 1 Term 2 Term 3Module Code MODULE

T P T P T P

TOTAL HOURS FOR EACH

CMA 20 Mathematics 2 - 2 - 2 - 72

CEN20 English Language and Communication 2 - 2 - 2 - 72

CEC 20 Economics 2 - 2 - 2 - 72

ICT 20 AutoCAD I - 2 - - - - 24

ICT 21 AutoCAD II - - - 2 - - 24

CBM 21 Basic Construction Management II 3 - 3 - - - 72

CBC20 Surveying in Building 1 3 - - - - 48

CBC 21 Building Science I 3 - - - - - 36

CBC 22 Building Science II - - 3 1 - - 48

CTD 23 Building Drawing II 3 - - - - - 36

CBC 23 Advanced Bricklaying and Blocklaying 2 10 2 10 - - 288

CBC 24 Advanced Concrete Work 2 6 - - - - 96

CBC 25 Components and Finishes - - - - 2 6 96

Total 14 24 14 13 8 6 1,020

9

Basic Construction Management I

PROGRAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCK MAKING

CONCRETING

MODULE: BASIC CONSTRUCTION MANAGEMENT

I

Course Code: CBM

12

Contact Hours: 3hrs

Theory/wk

GOAL: This module is designed to enable the trainee to acquire basic knowledge of construction

management

GENERAL OBJECTIVES:

On completion of this module, the trainee should be able to:

1. Understand the basic elements of craft leadership

2. Understand and apply the basic principles of site and workshop organisation

3. Maintain site record

4. Carry out accurate work measurement

5. Understand the basic elements of industrial relations.

10

PROGRAMME: NTC CONSTRUCTION MANAGEMENT

MODULE: BASIC CONSTRUCTION

MANAGEMENT I

Course Code: CBM 12 Contact Hours:

3hrs Theory/wk

Course Specification: Theoretical Content

General Objective 1.0: UNDERSTAND THE BASIC ELEMENTS OF CRAFT LEADERSHIP

Week Specific Learning Objective: Teacher Activities Resources

1.1 Explain the benefit of an

efficient control of craft force

• Discuss the benefit of an efficient control of craft

force. Arrange a site visit to a well organized

construction company and study its organizational

structure.

1.2 Describe the personal

qualities essential for craft

leadership

1.3 State the technical

qualifications required for craft

leadership

• State the qualities of a good leader on the

chalkboard for the students to copy e.g. a good

leader must be a good listener, must be selfless

etc. List the qualifications essential for craft

leadership. This should be personal and

academic qualifications e.g. NTC, ANTC, ND,

HND etc

• Chalkboard

• Chalk etc.

• Personal

interaction,

leadership

qualities etc

• Individual

projects in subject

areas.

1.4 Identify the basic elements

in the cultivation of team spirit

and the development of

favourable attitude toward team

work.

• The teacher should identify with the students

necessary qualities that will assist in

demonstrating favourable attitude needed for

team work.

1.5 Explain the

scope,application and limitation

of discipline.

• Use the classroom setting to teach the subject

matter.

1 & 2

1.6 List the factors which

influence good workmanship

and explain how they can be

optimally used.

11



MANAGEMENT I


3hrs Theory/wk


General Objective 2.0: UNDERSTAND THE BASIC PRINCIPLES OF SITE AND WORKSHOP

ORGANISATION.


2.1 Develop methods of

protecting materials, plant and

components on site.

• Prepare a maintenance schedule customised for

the college workshop. Use this as a guide for

students to practically maintain the equipment

and tools in the workshop.

2.2 Devise and use a

maintenance scheme for craft

equipment, plant and

machinery.

•

2.3 Identify incentive schemes

essential for the maintenance of

optimal production level and

standard craftsmanship.

•

2.4 Outline the basic

considerations in production

planning e.g. resources

availability, labour and

machines, etc.

Ditto Ditto

2.5 Define the terms

‘programming’ and ‘progressing’

in relation to site work.

• Use the chalkboard to write out example and

ensure that all the students learn the terms and

could remember them if asked.

• Teaching aids

and materials

2.6 Draw up programme and

progress charts for a given light

construction project (e.g. 3

bedroom bungalow or a two

storey building).

• Draw a programme work schedule for a 2 storey

building as a guide to students

• Chalkboard,

highlighter pen,

paper etc.

3-5

2.7 Outline the basic

considerations in a planning and

layout of company and joinery

workshop.

• Use line diagram to describe a typical workshop

layout and planning.

• Charts showing

the layout

12

2.8 Describe the procedures

involved in stock order, delivery

and issue in relation to a joinery

workshop or building site.

• Explain the procedures in stock order, delivery

and issue.

• Charts showing

inventory control.

2.9 State the objectives of

inventory control.

2.10 Describe an inventory

system suitable for a joinery

shop.

• The teacher makes a sample of inventory

control for joinery shop for the students to copy in

their notebooks.

•

2.11 Distinguish between one-

off, batch production and mass

production.

• Demonstrates to show the differences between

one-off batch production and mass production.

• Some templates

pre-prepared by

the teacher and

charts.

2.12 Describe the procedures in

production planning, (e.g.)

presentation of cutting list and

materials schedule, setting out

rods/templates, etc.)

• Guide students to make cutting list of a simple

project.

• Organisation

chart.

2.13 Plan a given joinery batch

production project.

• Teacher tells the students to plan a joinery batch

production

2.13 Draw up schedulesa in

relation to a given project.

2.14 Explain the importance of

systematic on-the-job training of

the labour force and its

implication on the reward

system.

2.15 Outline the purpose of

work study and describe some

work study techniques suitable

for building work.

2.16 Prepare an organization

chart for a given light

construction project.

• Teacher prepares an organization chart for light

construction contract and instructs to students to

copy into their notebooks.

13



MANAGEMENT I


3hrs Theory/wk


General Objective 3.0: MAINTAIN SITE RECORDS


3.1 Determine the minimum

office accommodation

requirements for the craft

foreman’s need.

3.2 State the purpose of time

sheets and describe the method

of preparing, analyzing and filing

them.

3.3 State the purpose of

keeping records.

3.4 Describe the methods of

keeping the following records:

accidents, site conditions,

incidents, variations etc.

• The teacher prepares.

- Accidents.

- Site conditions

- Incidents, and Variations

- Records with the students.

• Charts showing

records listed.

3.5 Keep daily records, confirm

variations and work done in

attendance of other trades.

3.6 Order and record deliveries

of materials, components and

plants using appropriate

methods.

6-7

3.7 Explain the purpose of site

meeting and the method of its

organization.

• The teacher practicalises site meeting with the

students by having an organized meeting with

students participating.

• Prepare sample record of delivery.

14



MANAGEMENT I


3hrs Theory/wk


General Objective: 4.0 CARRY OUT ACCURATE WORK MEASUREMENTS


4.1 Calculate quantities from

drawings.

4.2 Estimate labour and

materials required for a given

light contract (e.g. a one-room

house).

• Teach students how to calculate labour and

materials required for a given light contract. Give

the students assignments.

• Progress charts,

• Charts and

Chalkboard.

4.3 Record and interpret daily or

weekly progress by means of

progress charts.

• The teacher gives the students tests on topics

4.1 to 4.5

4.4 Calculate the amount of

bonus from a given measured

work.

4.5 Define interim certificate

8-9

4.6 Measure completed work

and variations

15



MANAGEMENT I


3hrs Theory/wk


General Objective: 5.0 UNDERSTAND THE BASIC ELEMENTS IN INDUSTRIAL RELATIONS


5.1 Give a brief outline history

and development of employer’s

association and trade unions in

Nigeria.

• The teacher gives the history of employer’s

association and trade unions in Nigeria.

5.2 Explain the functions of

industrial arbitration tribunal in

Nigeria.

• Explains the functions of industrial arbitration

tribunal in Nigeria, role and responsibilities of

union stewards.

• Students put down these explanations into their

notebooks.

5.3 Define working rule

agreement.

5.4 State the role and

responsibilities of union

stewards.

10-12

5.5 Explain the purpose of

National Apprenticeship scheme

13 EXAMINATIONS

16

Introduction To Building Construction


CONCRETING

MODULE: INTRODUCTION TO BUILDING

CONSTRUCTION

Course Code: CBC

11

Contact Hours: 3hrs

Theory/wk

GOAL: This module is designed to introduce the trainee in the building trades to the basic construction

principles, materials and methods so that he may be able to appreciate the roles of the various trades in the

building industry

GENERAL OBJECTIVES:


1. Understand the basic workshop safety, site safety principles and be able to apply them.

2. Know the use of common hand tools and building trades

3. Understand the use of materials and basic processes in carpentry and joinery

4. Understand the basic principles of site preparation

5. Understand setting out principles and be able to apply them to set out simple rectangular buildings on site.

6. Understand basic principles of choice and construction of foundations

7. Understand the principles of ground and upper floor construction in timber and concrete

8. Understand the principle of constructing load bearing walls

9. Know materials and methods used in fixing openings

10. Understand the function and principles of construction of construction of roofs

11. Understand the basic principles of design and construction of stairs

12. Understand the application of common types of finishes in the building trade

13. Understand the basic principles of installation of various types of services in dwellings.

17

PROGRAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING AND

CONCRETING WORK.

Module: - INTRODUCTION TO BUILDING

CONSTRUCTION

Module Code: CBC II Contact Hours: 2hrs.

Theory, 1hr. Practical


General Objective 1.0: UNDERSTAND BASIC WORKSHOP SAFETY SITE, SAFETY PRINCIPLES

AND METHODS TO BE ABLE TO APPLY THEM.

Week Specific Learning Objective: Teachers Activities Resources

1.1 Define and enumerate various hazards

in the workshop environment relating same

to a construction site situation, and stating

their causes and method of prevention.

1.2 Identify hazards components of

construction tools and equipments e.g.

drilling machines, grinding, machine and

circular saw etc.

1.3 Name dangerous gases and liquids in

common use in the workshop or

construction site e.g. paint frames,

flammable liquids, acetylene etc.

• Teacher should arrange to

use slide, video films,

Computer simulation etc. to

show and explain proper

handling of construction tools

and equipments and how to

prevent accidents both in the

workshop and on site.

• Various movable hand tools

and machines should be

displayed and show to

students and the methods of

safe handling explained.

• Show films and photo clips of

the hazards that can be

caused by poisonous and

dangerous gases e.g paint

fumes, carbon mono oxide etc.

• Slide, video player and

Television, video films

(related to the subject

matted diskettes etc.

• Drilling, grinding

cutting machine circular

saw, molding machine

etc.

• Films, clips, videos

films television monitor

etc.

• Chalkboard, copied

notes etc.

1.4 Define site relevant clauses in the

factory act on Health, Safety and Welfare

Regulations for workers on a construction

site.

1.5 Apply appropriate First Aid Treatment on

a victim in need of First Aid. e.g. burns,

shocks, accident victims etc.

• Use dummy to practicalise

the application of 1st Aid on

victims, this could be done in

the classroom to reinforce the

knowledge being imparted to

students.

• Dummy, first Aid box

well equipped with

drugs, bandage, cotton

wool, iodine etc.

• Safety signs, hand

gloves, boots protective

clothing goggles etc.

• Circular saws, and

drilling machined etc.

1-2

1.6 Undertake habitual maintenance of

health, safety and general welfare of the

individual. Identify what safety is and how to

prevent accidents, generally.

• First aid box, different

drugs, bandage other

first aid materials.

18


CONCRETING WORK.


CONSTRUCTION




General Objective 2.0: KNOW THE USE OF COMMON HAND TOOLS IN BUILDING TRADES.


2.1 Identify and describe the basic hand

tools in plumber’s work and state their

functions.

2.2 Identify and describe the basic hand

tools in Brick/Block work and state their

functions.

2.3 Identify and describe basic hand tools in

carpentry and joinery and state their

functions.

• Teacher should show

students basic workshop hand

tools related to a plumber’s

work e.g. wrench, yarn, diving

machine etc.

• Show and practically handle

Brick/Block work tools with

students, naming each tool and

asking the students to identify

same.

• Teacher should show and

demonstrate the use of basic

carpentry hand tools to the

students e.g. hammer,

pinches, drill etc.

• Basic hand tools for:

a.

joiners

and

carpent

ers

b.

bloc/bric

k layers

c.

painters

d.

plumber

s

3

2.4 Describe and identify the basic hand

tools in painting and Decorating and state

their uses.

2.5 Understand the repair, routine care and

maintenance of hand tools in use in the

workshops.

• Show students the basic

hand tools in.

- do -

19


CONCRETING WORK.


CONSTRUCTION




General Objective 3.0: UNDERSTAND THE USE OF MATERIALS AND BASIC PROCESSES IN

CARPENTRY & JOINERY.


4

3.1 Identify and know various types of

Nigerian Timbers and state their

characteristics and uses.

3.2 Describe methods of timber conversion

and preservation.

• Teacher should bring various

types of timbers (pieces) to

class and identify same to

students by name and

characteristics.

• Describe wood presentation

process.

• Material (timber)

• Wood Preservatives

5

3.3 Identify various types of manufactured

boards and state their uses.

3.4 Construct simple carcase joints using a

variety of materials tools.

• Bring pieces of various types

of boards e.g. plywood, particle

board etc. to the class for

identification and state their

uses.

• Plywood

• Particle Board

General Objective 4.0: UNDERSTAND THE BASIC PRINCIPLES OF SITE PREPARATION.


6-7

4.1 Define vegetable soil and identify same.

4.2 State the reasons for removing

vegetable soil or top -soil before setting out.

4.3 Identify hand tools and mechanical

plants used for excavation.

4.4 Explain the importance of site

investigation and preparation prior to setting

out.

4.5 Describe site preparation and

procedures prior to setting out.

• Use question and answer

technique to describe

vegetable soil and reasons for

removal before setting out.

• Show student various hand

tools used for earth excavation

e.g auger, excavator, shovel,

digger etc.

• Take a visit to new

construction site with the

students.

• Vegetable soil.

• Digger, trowel,

excavator, anger etc.

20


CONCRETING WORK.


CONSTRUCTION




General Objective 5.0: UNDERSTAND SETTING OUT PRINCIPLES AND BE ABLE TO APPLY

THEM TO SET OUT SIMPLE RECT. BUILD ANGULAR ON SITE.


8-12

5.1 Define and explain the principles of

setting out of buildings.

5.2 Sketch, and describe the method of

pegging out the perimeter walls of a

building.

5.3 Explain with sketches the use of timber

profiles in setting out.

5.4 Identify and explain the basic equipment

required for setting out on site.

5.5 Set out a simple rectangular building on

site.

• Demonstrate the principles of

setting out of buildings.

• Use sketches to explain why

timber is used as setting out

profiles.

• Describe the basic equipment

needed for setting out and use

sketches where necessary.

• Set out a simple rectangular

building with the students

participation

• Chalkboard, sketches

etc.

• Pegs, profile, nails,

line, T-square, Iron

square etc.

• Setting out equipments

etc.

13 EXAMINATIONS: PRACTICAL 60% THEORY 40%

General Objective 6.0: UNDERSTAND BASIC PRINCIPLES OF CHOICE & CONSTRUCTION OF

FOUNDATIONS.


1-2

6.1 Define and explain the functions of

foundation.

6.2 Describe the different types of

foundations indicating their suitability.

6.3 Describe equipment and methods used

in excavating foundation trenches.

6.4 Sketch and describe temporary supports

to the sides of deep trenches in various

soils.

6.5 Describe the equipment and methods

used in mixing concrete on site.

• Show pictures of excavating

machines

• Explain the functions of the

equipment.

• Chalkboard etc.

• Films, clips, pictures,

sketches etc.

• Concrete mixer,

coarse aggregate, fine

aggregate, cement,

water etc.

• Digger, shovels profile,

line etc.

3-4

6.6 Explain batching of concrete by weight and by volume and compare the two Method6.7 Organise and lay strip foundation under the supervision by the teacher.

• Explain batching with regards to concrete work. • Explain the difference between batching by volume and by weight.

• Cement • Mortar • Aggregates • Equipment and tools • Water

21


CONCRETING WORK.


CONSTRUCTION




General Objective 7.0: UNDERSTAND THE PRINCIPLES OF GROUND UPPER FLOOR

CONSTRUCTION IN TIMBER AND CONCRETE.


5-6

7.1 Describe and state the various functions

of floors

7.2 Describe various types of floor and the

methods of construction.

7.3 Describe various types of floorings and

their application.

7.4 Organise and cast a concrete ground

floor operations.

• Teacher should identify the

various types of floors

available and describe the

functions of each type to the

student.

• This should be demonstrated

by laying blocks to a level e.g

D.P.C. level and concreting the

floor as practical to show the

students how it is down.

• Concrete aggregates

etc.

• Visit to a construction

site.

General Objective 8.0: UNDERSTAND THE PRINCIPLE OF CONSTRUCTING LOAD BEARING

WALLS. YEAR TWO


7-8

8.1 List the principal functions of external

walls and internal walls.

8.2 Describe various types of wall units in

common use.

8.3 List typical mixes for mortar used for

bonding wall units in 8.2 above.

8.4 Describe the procedures and

precautions involved in mixing of concrete

and mortar on site.

8.5 Explain the function, method of placing

and position of D.P.C. in walls.

8.6 Set out and erect simple straight walls.

• Describe D.P.C. and

differentiate between D.P.C.

and D.P.M.

• Block, Cement, etc.

22


CONCRETING WORK.


CONSTRUCTION




General Objective 9.0: KNOW MATERIALS AND METHODS USED IN FIXING OPENINGS.


9-10

9.1 Identify Nigerian timbers and timber

products suitable for window and door

construction.

9.2 State the functions of openings in

dwellings e.g. light, ventilation, privacy,

inclusion of external weather.

9.3 Describe with sketches various types of

timber and metal doors and windows

including their mode of operation.

9.4 Describe various types of ironmongery

and state their uses.

9.5 Explain the need for the provision of

weathering structures (e.g sill) at openings

and describe with sketches structures used

in simple dwellings.

• Explain the difference

between wooden shutter

windows and doors, steel

windows and doors, crittal-

Hope type Windows and doors.

• Aluminum projected windows

and sliding doors etc.

• Pictures/Posters

• Charts

• Door/window

Schedules

(Manufacturer’s)

23


CONCRETING WORK.


CONSTRUCTION




General Objective 10.0: UNDERSTAND THE FUNCTION AND PRINCIPLES OF CONSTRUCTION

OF BASIC ROOF TYPES.


11-12

10.1 Define and describe with sketches,

basic roof types and profiles e.g. beam and

slabs as in concrete flat roofs, lattice and

similar guiders, trusses (Howe truss, double

roof, truss rafter, standard fink French Truss,

North light truss, couple, umbrella, bow

string, etc), portal frames, shell roofs, folded

plates etc.

10.2 Describe the materials and maximum

allowable span and application of the

various roof types in 10.1.

10.3 Name and define various roof

coverings suitable for tropical use and

identify the areas suitable for their use in

Nigeria.

• Show the pictorial

representation of the various

roof types to the student while

describing each.

• Pictures, Charts,

Drawings, film clips


24


CONCRETING WORK.


CONSTRUCTION




General Objective 11.0: UNDERSTAND THE BASIC PRINCIPLES OF DESIGN AND

CONSTRUCTION OF STAIRS.


11.1 Describe with the aid of sketches, the

different types of stairs e.g. straight flight,

dog-leg open well, spiral etc.

11.2 Explain with sketches the design

standards for the construction of stairs e.g.

riser, tread relationship, minimum

headroom, standard sizes of structural

members etc.

11.3 Explain and define the basic principles

of construction of a straight flight

timber/concrete/steel stairs.

• Differentiate between timber,

concrete and steel stair cases.

General Objective 12.0: UNDERSTAND THE APPLICATION OF COMMON TYPES OF FINISHES IN

BUILDING TRADE.


12.1 List external and internal wall finishes

and explain their applications, e.g. paint,

wall paper, premix finishes, etc.

12.2 State the function of ceiling in houses.

12.3 Describe with sketches various types of

ceiling construction and ceiling finishes in

the tropics e.g. normal ceiling, suspended

ceiling etc.

12.4 List various types of finishes for joinery

works and explain their application e.g.

vanish, polish, paint etc.

12.5 Organise and execute the painting of a

small dwelling using specified paint.

• Guide the students. • Berger paint, other

brand names.

12.6 Carry out the assignment using two

different brand names to test their quality

and efficiency

25


CONCRETING WORK.


CONSTRUCTION




General Objective 13.0: UNDERSTAND THE BASIC PRINCIPLES OF INSTALLATION OF VARIOUS

TYPES OF SERVICES IN DWELLING.


8 - 10

13.1 Explain the basic principles of a good

drainage system.

13.2 Describe with sketches the installation

standards relating to cold and; hot water

supply.

13.3 Sanitary wares; fittings e.g. sinks, bath,

W.C. shower, wash hand basin, Urinals, etc.

13.4 Explain with sketches construction

standards relating to the construction of

domestic drainage system, e.g. Inspection

chamber/cesspool, septic tank, soak away.

13.5 Explain the functions of good insulation

and lighting in dwellings.

13.6 Describe the different modes of supply

and installation systems of electricity in

dwellings e.g. simple phase, 3- phase

supply (conduit or surface wiring system)

• State the use of hand gloves

and wearing of rubber shoes to

prevent shock.

• Hand gloves, shoes

etc.

11 -

12

13.7 Identify and describe various electrical

fixtures stating their functions and explain

their installation principles.

13.8 List the precautions to be taken to

ensure safe electrical installation in

dwellings.

13.9 Interpret electrical circuit symbols and

drawings.

• Use a detailed Electrical

drawing to teach the student

the key.

• Electrical drawing of a

typical building.


26

Building Drawing and Design I


CONCRETING

MODULE: BUILDING DRAWING I Course Code: CTD 14 Contact Hours: 5hrs/wk

GOAL: This module is intended to introduce the trainee to the basic principles of residential building design

and to enable him make and interpret building drawings with facility.

GENERAL OBJECTIVES:


1. Interpret and apply symbols, and conventions and other standard practices in building drawing

2. Identify various architectural draughting materials and equipment and use them effectively in making

building drawings

3. Demonstrate knowledge of the basic principles of design of dwellings in warm climate

4. Prepare preliminary sketch design of a modern 3 bedroom bungalow

5. Draw the site and floors plans, elevations and sections of the proposed 3 bedroom bungalow

6. Prepare essential detail drawings of components

7. Draw detail plan of the electrical services

8. Demonstrate knowledge of the principles of preparing schedules

9. Reproduce drawing

27

PROGRAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING & CONCRETE

WORK.

Module: BUILDING DRAWING I Module Code: CTD - 14 Contact Hours:

5hrs/wk

Course Specification: Theoretical/Practical Content

General Objectives 1.0: Interpret and apply symbols and conventions and other standard practices in

building drawing

WEEK Specific Learning Outcome: Teacher Activities Learning

Resources

1 - 2

1.1 Recongnise and draw commonly used graphical

symbols and representation in building drawing. NOTE:

Symbols and representation should be as contained in

B.S. 1192 or similar Nigerian Standard.

1.2 Recognise various lettering styles.

1.3 Apply appropriate lettering styles in producing

building drawings.

1.4 List essential information required in the title block

and indicate them in standard layout as recommended in

B.S. 1192 or similar Nigerian standard.

1.5 Use sketches to describe dimensioning methods in

building NOTE: Dimensioning methods should be those

commonly.

1.6 State factors which govern choice of scale e.g

a. Need for lucid working information:

b. Need to achieve economy of effort

and time in drawing preparation;

c. Nature of drawing.

1.6 State range of standard scales for the following:

a. Site plans

b. Floor plans

c. Elevations

d. Component’ details

• List the symbols in

tabular form on the chalk

board and explain their

application.

• Display various lettering

styles and explain their

uses.

• Identify various scales in

common use and factors

that influence the scale.

• Explain the importance

of accurate dimensioning

in drawings

• Chalk Board

• Charts of

graphical

symbols

• A building

drawing with

various

graphical

symbols.

• Drawing

instruments

• Materials

• Lesson note

• Standard

drawing sheets

of various sizes

28


WORK.


5hrs/wk


General Objective 2.0: Identify various architectural draughting materials and equipment and use

them effectively in making building drawing.


Resources

3 - 5

2.1 Recognize various standard sizes of drawing papers

and boards explain their uses.

2.2 Explain the various metric scales on architect’s

triangular or flat scales and demonstrate their use in the

making of building drawings.

2.3 Describe the character and state the use of:-

i. Cartridge drawing paper

ii. Natural tracing paper

iii. Tracing film (acetate paper).

2.4 Select appropriate instruments and use them

effectively in the production of building drawings NOTE:

Essential instruments to be used should include: scales,

drawing pens, lettering templates, adjustable set-square,

instrument set, irregular (French) curves, T-

square/parallel ruling straight edge/draughting machine.

2.5 Explain the working principles of a typical plan

printing machine or device.

• Explain why rooms

should be well ventilate.

• Discuss the factors that

influence design of

residential buildings in

Nigeria.

• Picture of plan

printing

machine.

29


WORK.


5hrs/wk


General Objective 3.0: Demonstrate knowledge of the basic principles of design of dwellings in warm

climate.


Resources

3.1 Explain the concepts of form, function and beauty as

applied in building design.

3.2 Identify the basic parts of a typical modern

residential bungalow.

3.3 explain the functional relationshipof 2.2 above and

state the design required with regards to warm climate

condition.

NOTE: Basic parts should include: dinning room, bed

room, kitchen, garage (internal and annexed), bath/toilet,

store, etc.

• Explain the functions of

the various building

components.

• List the essential

services necessary in a

building.

• Lesson note

• Chalk Board

• Posters

• Charts

3.4 Identify typical water and sanitary services in a

modern flat and use sketches to illustrate their

installation standards, e.g. shower, WC., sink, bath,

water heater, wash hand basin, etc.

3.5 Name common types of exterior and interior finishes

for domestic buildings and explain their application.

3.6 Explain the purpose of town planning authority

regulations.

30


WORK.


5hrs/wk


General Objective 3.0: Demonstrate knowledge of the basic principles of design of dwellings in warm

climate.


Resources

3.7 Explain how site characteristics may influence the

design of a residential building.

3.8 Enumerate the characteristics of good floor plan, e.g.

adequate and properly located openings, good functional

relationship, etc.

3.9 Enumerate the factors which influence the design of

residential buildings in Nigeria, e.g. site, town planning

authority regulations, materials and labour availability,

client taste/culture, financial ability.

3.10 Distinguish between design and plan and as built

plan

3.11 Describe the essential elements of good site plan.

• Use question and

answer techniques to

explain the functions of

town planning authority

and the importance of

good town layout.

• Town

Planning Laws.

• Picture

/Posters of a

well planned

modern city.

General Objective 4.0: Prepare preliminary sketch design of a modern 3 bedrooms bungalow.


Resources

8 - 9

4.1 Determine the characteristics of e given Surveyor’s

plan, e.g. solar orientation, plot size, access road, etc.

4.2 Prepare preliminary sketch design of a modern 3-

bedroom bungalow suitable for the plot in 4.1 above.

4.3 Justify the space arrangement and choice of

materials of the proposed bungalow.

• Discuss presentation

plan

• Show details of cut

sections across hidden

components - Stair case,

etc.

• Draw elevations e.g.

approach, rear and rear

side elevation.

• Give assignments on

drawing to students.

• A well

equipped

drawing studio.

31


WORK.


5hrs/wk


General Objective 5.0: Draw the site and floor plans, elevations and sections of a proposed 3-

bedroom bungalow.


Resources

10-12

5.1 Prepare presentation floor plan and working

drawings to suitable scales of a proposed bungalow.

5.2 Draw the elevation to suitable scale. NOTE:

Elevations may include front, rear, left and right sides.

5.3 Determine and draw details of essential sections.

NOTE: Use may be made of off-set and removed

sections where necessary.

5.4 Draw the foundation plan.

5.5 Draw the site plan.

NOTE: Site plan should conform with local authority

planning regulations and in particular indicate drainage

plan. (septic tanks, soak away, inspection, chambers,

pipelines), boundary wall or line, access road.

• Distinguish between a

bungalow and a storey

building, duplex, etc.

• Explain the importance

of proper detailing in

building drawing.

• Finished

drawing plan.

13 Examinations. Practical 100%

General Objective 6.0: PREPARE ESSENTIAL DETAIL DRAWINGS OF COMPONENTS.


Resources

1-4

6.1 Determine and draw to suitable scales essential

details of components. NOTE: Details may include:

Floor, beams, lintels, hoods, railings, screen walls fire

place, boundary wall and gate, plumbing.

6.2 Prepare working drawing of the septic tank and

soak-away suitable for the bungalow.

6.3 Draw the interior elevations and sections of the

kitchen and launderette. NOTE: Drawings should show

details of cabinets; and work-top.

• Guide the Students to

produce a given drawing

to specification.

• A well

equipped

drawing studio.

32


WORK.


5hrs/wk


General Objective 7.0: Draw detail plan of the electrical services.


Resources

5-7

7.1 Use the presentation floor plan as an aid in

determining the types and location of electrical services.

7.2 Draw the electrical service plan for the bungalow.

• Using the presentation

floor plan, determine

location of electrical

services.

• Drawing

showing the

floor plan.

8-10

7.3 Demonstrate knowledge of the principles and

methods of preparing schedules.

7.4 Explain the meaning of “scheduling” as used in

building drawing, state the uses of schedules and typical

subjects for schedules.

7.5 State the two categories of information in schedule,

e.g.

i. a specification of materials,

component of activity.

ii. the location of theses specifications.

7.6 Prepare the following schedules for the bungalow:

door, windows, electrical installation, plumbing, painting,

reinforcement (where necessary)

• Explain scheduling and

describe the use. Paper

schedules for the

following: doors, windows,

electrical plumbing,

painting etc.

• Give assignments and

guide the students to

prepare schedules for a

given building projects.

• Chalk Board

• Drawing of a

given bungalow.

General Objective 8.0: Reproduce drawings.


Resources

11-12

8.1 Trace and ink effectively the design and working

drawings above.

8.2 Print out inked or pencil drawing using plan printing

machine or a manual printing device.

8.3 Assess the quality of drawings from printed copies.

• Organise a printing

Exercise.

• Produce copies of

drawing.

• Guide the students to

perform the exercise

• Drawing

studio

• Dark Room

• Printing

Equipment

• Posters

13 EXAMINATIONS: 100%

33

Bricklaying


CONCRETING

MODULE: BRICKLAYING Course Code: CBC 12 Contact Hours: 5hrs/wk

GOAL: This module is designed to provide the trainee with the essential knowledge and skill that will enable

him perform competently all aspects of brick-work in the construction industry.

GENERAL OBJECTIVES:


1. Understand basic workshop and site safety principles and their applications

2. Understand the use of various tools and equipment in the bricklaying trade

3. Understand the basic principles of manufacture, properties and application of various types of bricks

4. Understand the use of material and basic processes in carpentry and joinery

5. Understand the main physical properties and application of various types of cements

6. Understand the main physical properties and application of various types of aggregates and mortars

7. Understand the principles and methods of preparing mortars for building works.

8. Understand the basic principles of and be able to carry out simple leveling project construction

9. Understand the principles and methods of preparing sites and setting out building

10. Understand and be able to apply basic principles and practice relating to substructure construction

11. Understand the principles of construction and be able to construct lay concrete ground floors

12. Understand the basic principles of construction and be able to construct plan and simple decorative brick

walls

13. Know materials and methods used in fixing openings

14. Understand the function and principles of construction of basic roof types

15. Understand the basic principles of design and constriction of stairs

16. Understand the principles of construction, erection and dismantling of scaffolds in accordance with

construction (working places) regulations

17. Understand the basic principles of construction of fire place and chinnerys for cooking range

18. Know materials and methods used in walling.

19. Understand the principles of construction of simple drainage system.

20. Understand the basic principles of Kerbs and surface drainage channels to specification.

34


WORK.

MODULE: BRICKLAYING Module Code: CBC 12 Contact Hours: 2hrs

Theory, 8hrs Practical


General Objective 1.0: Understand Basic Workshop And Site Safety Principles And Their Application.


1

1.1 Define and enumerate various

hazards in the workshop environment

relating same to a construction site

situation, and stating their causes and

methods of prevention.

1.2 Identify dangerous components in

construction tools and equipments e.g.

drilling machines, grinding machine, and

circular saw, etc.

1.3 Name some dangerous gases and

liquids in common use in the workshop

or construction site e.g. paint fumes,


Teacher should use slides,

video films, computer simulation

etc. to show and explain proper

handling method of construction

tools and equipments how to

practically prevent accidents

both in the workshop and on

site when using them..

Show specified hand tools and

machines to students and

explain methods of safe

handling of such equipment.

Show films and photo clips of

some hazards that can be

caused by poisonous and

dangerous gases e.g. paint

fumes, carbon monoxide etc.

• Slide, video player and

television, video films

(related to the subject

matter) diskettes etc.

• Drilling, circular saws,

molding machine etc.

1.4 Define and cite relevant clauses in

the factory act on Health, safety and

Welfare Regulations for workers on a

construction site.

1.5 Apply appropriate first Aid treatment

on a victim involved in burns, shocks

accident victims etc.

1.6 Carry out habitual maintenance of

health, safety and general welfare of the

individual.

1.7 Identify what safety is and how to

prevent accidents, generally.

Write on the chalkboard for the

students to copy the relevant

clauses. Give examples for

students to learn at home.

Use safety equipment to

practicalise the application of

first aid on victims, this could be

done in the classroom to

reinforce the know ledge being

imparted to the student.

• During, first, aid box well

equipped, with drugs,

banding cotton wool, iodine

etc.

• Safety signs, hand,

gloves, boots, protective

clothing, goggles etc.

• Circular saw, grinding,

machine, and drilling

machines etc.

35


WORK.




General Objective 2.0: Understand The Use Of Various Tools And Equipment In The Bricklaying

Trade.


2

2.1 Differentiate between common hand

tools and heavy equipment/machines in

bricklaying trade.

2.2 Identify the common tools and their

uses.

2.3 Identify the equipment available in

Bricklaying viz pan mixer, mortar mixer,

concrete mixer of various types of

dumpers.

2.4 Sketch/draw and label some of the

tools/equipment used in the bricklaying

shop.

2.5 State the importance of care/

maintenance of bricklaying tools.

Distinguish by between

common hand tools and

equipment.

Display and name each tool and

their uses.

Display charts.

List the operational procedure

of carrying out the maintenance

of specified blocklaying

equipment.

Ask students to identify each of

these tools displayed.

• Tools and equipment

(some).

• Chart/posters.

• Real object tools.

• Charts/Poster.

• Over head projector.

2.6 Correctly handle some specified

bricklaying equipment and tools.

2.7 Carry out periodic maintenance of

equipment e.g. concrete mixer.

The teacher demonstrate the

handling of the common

bricklaying tools.

Carry out check for efficiency.

Organise a maintenance

exercise of any of the

equipment.

• Tools and equipment

• Manufacturers manual

36


WORK.




General Objective 3.0: Understand The Basic Principles Of Manufacture, Properties And Application

Of Various Types Of Bricks.


3-4

3.1 List the composition of clays.

3.2 List the physical properties of clays.

3.3 Describe with sketches and state

uses of various sizes of bricks.

• burnt clay bricks

• mud bricks

• engineering bricks

• refractory bricks

• decorative bricks

• concrete bricks

• sand lime bricks

The teacher display the different

types of bricks and identifies the

materials used in their

production.

With live diagram the teacher

outline the process of

production of standard bricks

emphasing on the amount of

water required in the mix and

the danger of having excess of

less water in the mix.

List the advantages of machine

moulded bricks over hand

moulded bricks.

• Lesson plan.

• Sandscreete bricks.

• Clay bricks.

• Engineering bricks.

• Mud bricks

• Hand mould.

• Machine mould.

3.4 Explain the process of manufacturing

of bricks taking into account curing

techniques.

3.5 List defects in manufactured bricks.

3.6 Explain their use causes and state

necessary precautions against their

occurrence.

3.7 Estimate the required quantity of

materials required for moulding or

specified number of sandscrete bricks.

3.8 List the factors which can affects the

compressive strength of bricks..

The teacher guides the students

in the production of specific

number of bricks given the

materials.

• Ask student to produce

specified number of bricks.

• Explain some defects that may

show and gives reason for the

occurrence.

• Typical training work

shop

• Material laboratory

• Clay

• Head pan.

• Spade

• Moulds

(manual/machine)

37


WORK.




General Objective 4.0: Understand The Use Of Material And Basic Processes In Carpentry And

Joinery


5

4.1 Identify and know various types of

Nigerian timers and

state their characteristics and uses.

4.2 Describe methods of timber

conversion and

preservation.

4.3 Identify various types of

manufactured boards and state

their uses.

4.4 Describe the basic process of

carcass construction.

• Teacher should bring various

types of timbers (pieces) to

class and identify same to

students by name and

characteristics.

• Explain the process of timber

preservatives.

• Bring pieces of various types

of boards e.g. plywood, particle

board etc. to the class for

identification and state their

uses.

• Pieces of various types of

timbers available in

Nigeria.

• Wood preservatives,

wood etc.

• Pieces of plywood,

particle board, etc.

• Variety of materials

required for construction.

38


WORK.




General Objective 5.0: Understand The Main Physical Properties And Application Of Various Types

Of Cements.


5-6

5.1 List the different types of cements

available and give example of were they

are use ie. ordinary Portland cement, low

heat Portland cement, sulphate resisting

cement high alumina cement,

supersulphate cement etc.

5.2 Outline the process of manufacture

of ordinary Portland cement.

5.3 Describe the general effects of

variation in the properties of ordinary

Portland cement, e.g. variation in

fineness, soundness and setting time.

5.4 State the meaning of the following:

Hydration, setting and hardening of

cement.

5.5 Distinguish between setting and

hardening of cement.

• tabulate the types of cement

eg Portland cement modified

Portland cement and non

Portland cement their properties

and area of used.

• Outline by line diagrams the

stages of production of ordinary

Portland cement.

• Explain the following terms

a. hydration

b. Setting and

c. Hardening

• Identify tests and procedures

of testing i.e. fineness test,

soundness, setting time etc.

• Sample of raw material

egg line or chalk and clay

chart showing the stages

of production of cement,

sample of ordinary

Portland cement.

poster of typical storage of

cement in bags and silo.

• Sample of the following

types of cements:

a.

Ordinary

Portland

b. Low

heat

Portland

c.

Sulphate

resisting

d. Portland

pozzolana

e.

Supersulp

hated

cement

f. High

almina

cement

39


WORK.




General Objective 5.0: Understand The Main Physical Properties And Application Of Various Types

Of Cements.


5.6 Explain the relative advantages of

handling cement in silos and in bags.

5.7 List the procedure of carrying out the

following test fineners, soundness,

setting time.

5.8 Determine the suitability of cement

on site by at least three methods.

• Discuss handling procedure of

both large/small quantity of

cement.

• Explain the physical tests on

cement.

• Display the

equipment/apparatus for

carrying out tests ie vicat

apparatus etc.

• Demonstrate the experiment.

• Groups the students and task

them to carry out the tests.

a. balance

b.

apparatus

ie vicat

c. le

chatelier

d.

briguette

mould.

General Objective: 6.0 Understand The Main Physical Properties And Application Of Various Types

Of Aggregates


7-9

6.1 Define aggregates and distinguish

between fine and coarse aggregates.

6.2 Classify various aggregates by their

sources and uses ie natural, artificial,

light weight (refractory) etc.

6.3 Distinguish between the range of

particles size of coarse and fine

aggregate and explain the general

effects of particles.

6.4 Describe different ways of collecting

aggregate for test

• Show sample of fine/coarse

• aggregate ie sand/gravel or

granite.

• Define aggregate and their

use in

• construction.

• List and classify aggregate by

their nature or use.

• List the sieve sizes for grading

of both fine and coarse

aggregates.

• Describe the process of

carrying out test on aggregates

from sampling to fineness.

• Sample of the

aggregates.

• Quartering gauge

• Riffle box

• Balance

• A table of a complete job

• The graphs sheet.

• Photograph of an

aggregate stock pile.

40


WORK.




General Objective: 6.0 Understand The Main Physical Properties And Application Of Various Types

Of Aggregates


6.5 State the purpose of sieve test and

plot the sieve analysis and interpret.

graded, gap graded

6.6 Determine the finess modulus.

6.7 State tests on aggregate and

determine the purpose of silt, bulking

colour metric etc.

6.8 Describe physical tests on

aggregates.

6.9 Describe various ways of storing,

aggregates on the site i.e. aggregates

stock pilling, storage bins.

• Modulate and interpret result.

• Describe various ways of

storing aggregates on the site.

41


WORK.




General Objective: 7.0 UNDERSTAND THE PRINCIPLES AND METHODS OF PREPARING

MORTAR FOR BUILDING WORKS.


10-12

7.1 Define mortar and list the qualities of

a good mortar as used in construction

industry.

7.2 Specify the type and mix ratio for a

particular purpose.

7.3 Define workability.

7.4 Determine factors affecting

workability.

7.5 Identify the advantages of

mechanical mixing over manual mixing.

7.6 Determine factors affecting

mixing/mix.

7.7 Determine the use of admixture in

mortar.

• Define mortar and identify the

four types of mortar and uses.

a. Line mortar.

b. Cement

mortar

c. Cement line

mortar or

ganged

d. Mortar.

e. Refectory

mortar

• Explain the two methods of

mixing and factors affecting the

choice.

• Define workability, water:

cement ratio, aggregate:

cement ratio.

• Sample of line light

weight aggregate.

a. sand

b. binding

agent

c. concrete

platform

d. shovel

e.

deadpan

f. pan

mixer

7.7 Take a specified water, cement ratio, and aggregate: cement ratio, measure materials for mortar by volume. 7.8 Mix a workable mortar for one of the following purposes.

a. Moulding bricks b. Bedding and jointing of bricks c. Plastering and rendering

NOTE: Mix by hand or machine process.

• Specify by tabulating mix ratio/type of mortar for various jobs. • Describe various ways of achieving a workable mortar. • Give a mix ratio and asked student to measure out by volume the sand and cement content.

13 EXAMINATION: Practical 60%, Theory 40%

42


WORK.




General Objective 8.0: Understand The Basic Principles Of And Be Able To Carry Out Simple

Leveling Project Construction.


1-2

8.1 Define leveling.

8.2 Identify various tools and equipment

used in transferring levels i.e.

a. Plumb level and pegs

b. water level

c. bunny rods and pegs

d. leveling instrument.

8.3 Describe the process of leveling i.e.

rise and fall method and instrument

height.

• Define leveling.

• List various equipment used in

leveling.

• Describe each method of

leveling and their accuracy.

• Explain the two methods.

a. rise and fall,

and

b. instrument

height.

• Compute reduced level from

the given data and ask students

to do same.

• Spirit/Plumb level

• Transparent tiny rubble

tube

• Pegs

• Borning rods

• Dumpy level

• Titing level

• Staff

• Measuring

• Tape

General Objective: 9.0 Understand The Principles And Methods Of Preparing Sites And Setting Out Buildings.


3-4

9.1 Outline the basic considerations in the preparation of site for the construction of buildings e.g.

a. access roads b. electricity supply c. storage facilities d. temporary structure e. hoarding etc.

9.2 Determine the importance of removal of top soil/vegetable soil. 9.3 State the problems that may be encountered during the construction work in the following situations:-

• Describe what is meant by preliminary site work thereby identify the temporary services and importance. • Discuss the method of clearing and the reason for removal of vegetable/top soil. • Define giving examples the different types of soil:

a. rocky b. firm c. made up soil

• Chart/picture of various earth moving equipment. • Builders square • Tape • Pegs • Trammel • Line • Profiles

43


WORK.




General Objective: 9.0 Understand The Principles And Methods Of Preparing Sites And Setting Out

Buildings.


a. water logged site

b. pit/alluvial soil

c. congested one plot

side

d. site requiring

demolition of existing

structures.

9.4 Explain the purpose of establishing

datum level on site.

9.5 Differentiate between layout and

setting out.

9.6 Determine the importance of building

line.

a. Identify the tools and materials used in

simple setting out exercise.

9.7 Describe at least two ways to check

accuracy of a given setting out.

9.8 Describe the process of construction

of plain and irregular shapes for irregular

shapes.

9.9 Identify the line and peg method.

44


WORK.




General Objective 10.0: Understand And Be Able To Apply Basic Principles And Practice Relating To

Substructure Construction.


5-6

SUB-STRUCTURE CONSTRUCTION

10.1 Identify the properties of different

types of soil.

10.2 Select the necessary tools for

manual excavation.

10.3 Describe mechanism by drawing

various earth moving equipment.

10.4 Distinguish between site and soil

investigation.

10.5 Describe various ways of site

drainage

• Samples of soils displayed

and their properties identified.

• Display charts, posters and

pictures illustrating the

mechanism of the earth moving

equipments.

• Identify various ways of site

drainage.

• Sump hole.

• Laying of perforated pipes.

• Dewatering etc.

• Real object i.e. sample of

soils.

• Charts.

• Pictures.

• Chalkboard.

• Complete drawing

instrument.

• T. Square.

• Pair of compass.

• Lesson notes

10.6 Define the bearing capacity of a

soil.

10.7 Solve some problems involving

bearing capacity.

10.8 Identify methods of preventing

collapse of trench.

10.9 Define the angle of response.

10.10 Identify with sketches the

timbering system for the following

situations.

a. Shallow trench in

moderately firm soil.

b. Shallow trench in

loose soil.

c. Shallow trench in

water logged area.

10.11 State necessary precautions for

safe working conditions.

• The teacher draws the

timbering suitable for a loose

shallow trench and gives

assignment.

• Teacher names types of

timber used in timbering

trenches

• Explain safe working condition

in excavated trenches.

45


WORK.




General Objective 10.0: Understand And Be Able To Apply Basic Principles And Practice Relating To

Substructure Construction.


10.12 State the reasons for the following

craft practice.

a. Ramming of trench

base before casting

concrete foundation.

b. Casting concrete

foundation

c. Antiterm its

application

d. Ramming in layers

very deep refill

10.12 Estimate quantity of soil to be

carted way or back fill putting allowing for

bulking.

10.13 Describe the functions of

foundations.

a. List types of

foundations.

b. Sketch different types

of foundations.

c. Identify their uses.

• Materials used for concrete for

foundation.

46


WORK.




General Objective 11.0: Understand The Principles Of Construction Concrete on the Ground Floors


7-8

11.1 Identify the functions of ground,

solid and suspended floors.

11.2 Sketch the cross section of:

a. Solid ground floor

b. Suspended floors

c. German floor

11.3 Identify by labelling the members

with sizes.

11.4 Show the placement of main and

distribution bars in suspended floor.

11.5 State the functions of damp proof

course.

• The teacher lists the functions.

• Sketch the types of floors on

the chalkboard.

a. solid

b. suspended

• Emphasise on the sizes of

components and the point of

placement and give reasons.

• List some damp proof

materials.

• Chalkboard

• Lesson notes

• Sketches

• Drawing

• Real object egg.

Hardcore damp proof

materials.

11.6 List common damp proof materials.

11.7 Give reason for the following.

a. Minimum thickness of

oversite concrete

b. Correct placement of

positioning of DPC

c. Correct mix for over

site concrete.

11.8 State the functions of hardcore.

11.9 Specify the quality and type of local

material suitable for hardcore.

• Organise a visit to a standard

construction site Introduce the

students provide necessary

safety wears and ask students

to questions and jot

observations.

• A typical project site

where casting of oversite

concrete is in progress.

47

PROGRAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING & CONCRETE WORK.

MODULE: BRICKLAYING Module Code: CBC 12 Contact Hours: 2hrs Theory, 8hrs Practical


General Objective 12.0: Understand The Basic Principles Of Construction Of Simple Decorative Brick Walls


9 - 10

12.1 State the functions of a brick wall. 12.2 Identify the common bond in brick wall construction. 12.3 Sketch different provision for future continuation of job. 12.4 Describe the following types of walls - load bearing, partition walls, parapet, party etc. 12.5 Interpret brickwork construction form a working drawing. 12.6 Describe with sketches /drawing the following methods of bridging openings. 12.7 Sketch the following features in wall construction.

a. Sill b. Canopy, copping, attached piers detached piers.

• The teacher list and explain the function of brick wall. • Sketch - Tooting raking back on the black board and explain their uses. • List the different types of walls and give brief definition and uses. • Explain or differentiate between precast and cast in situ.. • Sketch a typical mould and form work for each. • Draw to scale showing construction lines and parts of a semi circle arch. • Give assignment to draw – three centre arch.

• Lesson plan • Chalk board • Charts • Drawing/sketches. • Same.

12.8 Estimate the quantity of material allowing for damages using a working drawing. 12.9 Define a threshold 12.10 Sketch a threshold. 12.11 Describe method of construction. 12.12 Sketch fixing of door/window frames as the construction continues. 12.13 Sketch fixing of door/window frames at the completion of construction.12.14 State advantages and disadvantages. 12.15 Distinguish between pointing and jointing. 12.16 Sketch different types used in wall construction.

48


WORK.




General Objective 13.0: Know Materials And Methods Used In Fixing Openings.


11-12



construction.

13.2 Describe the method of converting

and seasoning timber for carpentry and

joinery work.


drillings e.g. light Ventilation, privacy,

exclusion of external weather.

13.4 Describer with sketches various

types of timber and metal doors and

windows including their mode of

operation.

13.5 Describe various types of door and

window iron ironmongery and state their

uses.


weathering Structures (e.g sill) at

openings and describe with sketches

structures used in simple dwellings.

• Explain the difference between

wooden shutter windows and

doors, steel windows and doors,

crittal-Hope type Windows and

doors.



• Different types of doors

and windows pictures,

Charts

13 EXAMINATIONS

49


WORK.




General Objective: 14.0 UNDERSTAND THE FUNCTION AND PRINCIPLES OF CONSTRUCTION

OF BASIC ROOF TYPES.


1-2


basic roof types and Profiles e.g. beam

and slabs as in concrete flat roofs Lattice

and similar guiders, trusses (Howe truss,

double, for truss, truss rafter, standard

fink French Truss, North light truss,

couple, umbrella, bow string, etc), portal

frames, shall roofs, folded plates etc.

14.2 Describe the materials, maximum

allowable span and Application of the


14.3 Name and define various roof

covering suitable for tropical use and

identify situations suitable for their use.

• Show pictorial representation

of the various roof types to the

student while describing each.

• Pictures, real objects i.e.

roof trusses

General Objective: 15.0 UNDERSTAND THE BASIC PRINCIPLES OF DESIGN AND

CONSTRUCTION OF STAIRS.


3-4

15.1 Describe with the aid of sketches,

the different types of stairs e.g. straight

flight, dog-open well, spiral etc.


standards for the Construction of stairs

e.g. riser-tread relationship,

minimum headroom, standard sizes of

structural members etc.

15.3 Explain and define the basic

principles of construction

of a straight flight timber/concrete/steel

spiral stairs.


concrete and steel stair cases

to the student.

• Pictures, Charts, Films,

Timber, Stairs.

50


WORK.




General Objective: 16.0 UNDERSTAND THE PRINCIPLES OF CONSTRUCTION, ERECTION AND

DISMANTLING OF SCAFFOLDS IN ACCORDANCE WITH CONSTRUCTION (WORKING PLACES)

REGULATIONS


16.1 Describe with sketches the

following scaffolds.

a. bracket scaffold

b. putlog

c. independent

d. trestle

16.2 State situation WHERE each is

most suitably used.

16.3 Identify the members.

• The teacher list the types of

scaffolds and sketch and

identify part.

• Sketch a gin wheel as it is

attached to scaffold.

• Sketch supports with bridle at

window opening.

• Identify safety precautions

peculiar to scaffolding and

cranes.

• Lesson plan

• Real objects – gin wheel

and chain

• Pictures, posters of

cranes

• Couplers

• Other components.

• Scaffold tubes

• Couplers

• Spanners

• Wrench etc.

4-5

16.4 Explain the relative advantage of

timber and tubular scaffold.

16.5 Describe various hoisting

equipment for hoisting material on site.

a. gin wheel

b. scaffold crane

c. stationery crane

d. mobile cranes

16.6 Identify the components and uses.

16.7 Erect a put log scaffold.

16.8 Erect transom scaffold.

16.9 Erect timber/bamboo scaffold.

16.10 Dismantle the putlog scaffold.

16.11 Dismantle transom scaffold.

16.12 Dismantle timber/bamboo scaffold.

• Show each components and

name.

• Show tools necessary to erect

i.e. spanner wrench etc.

scaffold.

• Demonstrate in steps the

process of erection.

• Placing the sole and base

plate at interval with standards.

• Demonstrate how a gin wheel

is attached to the scaffold.

51


WORK.




General Objective: 17.0 UNDERSTAND THE BASIC PRINCIPLES OF CONSTRUCTION TO

SPECIFICATION OF FIRE PLACE AND CHIMNEYS FOR COOKING RANGE.


6

17.1 Identify types of materials.

17.2 State the qualities/properties

expected.

17.3 State basic consideration in the

design and construct of fireplace and

chimney stock eg good control of

draught, type of fuel/location etc.

17.4 Prepare kitchen layout and working

drawing incorporation details of a typical

fire place and chimney stack for the

following classes of fuel.

• List the properties of materials

for fire place construction.

• Give examples

• Show a typical drawing

incorporating each case.

• Sketch different joints lining of

fumes by pegetting.

• Lesson plan

• Charts

• Drawings

• Sketches

a. fire wood

b. coal

c. gas/paraffin

17.5 Sketch and describe various

methods of sealing joints between stack

and tool covering (weathering around

stack) e.g. use flashing fillet with ratio 1.1

52


WORK.




General Objective 18.0: KNOW MATERIALS AND METHODS USED IN WALLING.


7-8

18.1 Identify by name various types of

stone in Nigeria suitable for walling i.e.

granite marble etc.

18.2 Describe the process involve in

preparation of 18.1 above for plastering.

18.3 Identify various bonding patterns

available for walling.

18.4 Specify mortar mix for stone setting

in walling.

• Show the students different

types of stones.

• In tabular form state the

process involved in preparation

of stone from rock.

• Sketch each bonding pattern

available.

• Identify mix proportion of

mortar for setting of stone wall.

• real objects

• stone samples

• pictures showing

a.

blastering

site

b. crushing

drawing

showing

different

bonds.

General Objective 19.0: UNDERSTAND THE PRINCIPLES OF CONSTRUCTION OF SIMPLE

DRAINAGE SYSTEM


19.1 Distinguish between a sewer and a

drain.

19.2 Explain the basic principles of a

good drainage system.

19.3 Sketch (1) combine system (2)

separate system.

19.4 Describe with detail sketches the

structural detail of.

a. Septic tank

b. Soak away

c. Inspection

chamber/manhole

d. Cesspool

e. Intercepting chamber

• Show the students pieces of

drain pipes

a. Plastic

b. asbestos

53


WORK.





DRAINAGE SYSTEM


19.5 Explain the use and state the

standard size of.

a. plastic drain pipes

b. asbestos drain pipes

c. galvanized steel pipes

19.6 Describe with sketches the use of

pipe fitting e.g. 1.1.1

a. connecting sockets.

b. junction-square

oblique

c. Saddle junctions

d. Bends

e. Channels

f. Gullies

g. Drain chutes

h. - interceptors


drain pipes

a. plastic

b. asbestos

• air bag and stopper

• gauge

• hand pump

• smoke chamber

• touch

• chart

• picture

19.7 Describe with sketches the use of

pipe fitting e.g..

a. connecting sockets

b. taper pipe

c. junction-square

square

d. saddle junctions

e. bends

f. channels

g. gullies

h. interceptors

• Show the students the

different pipe fitting as listed in

19.6


• gauge

• hand pump

• smoke chamber

• chart

• picture

54


WORK.





DRAINAGE SYSTEM


19.8 Describe with sketches methods of

determining fall of underground drain.

19.9 Describe the following methods of

testing drains.

a. water

b. smoke

c. ball

d. torch

e. air

• Carry the students to where

construction is going and show

them how drains are tested

• Water

• Smoke

• Ball

• Torch

• Air.

19.10 Interpret from working drawing

construction of details of simple drainage

systems involving trench excavation,

preparation of base, laying of pipes,

gullies.

19.11 Install (1) bath (2) wash/hand

basin (3) W. C suite bidet (5) urinal(6)

sink.

• display a typical mechanical

drawing

• pick detail from the drawing

and explain fixing of fittings.

• Using a typical standard site

plan locate.

a. soak away

b. septic tank

c. cesspool as

the case may

be

• site plan

• mechanical drawing

• the accessories

a. bath

b. wash

hand basin

c. W.C.

suite

d. Bidet

e. Urinal

f. sink

55


WORK.




General Objective 20.0: UNDERSTAND THE BASIC PRINPLES OF LAYING KERBS AND SURFACE

DRAINAGE.


11 –

12

20.1 State the functions of kerbs.

20.2 Sketch and describe different forms

of kerbs and state materials for

production.

20.3 Describe with sketches a methods

of laying precast concrete kerbs. State

standard sizes of kerbs.

20.4 Specify the quality of bricks and

jointing mortar suitable for construction

of channels/gutters.

20.5 Give reasons for channels and state

the factors which determine the better

angles

• Mount the pictures of a run

way showing the arrangement

of kerbs, precast powers and

channels.

• list the materials used in

production ie cement, sand and

granite.

• Pay visit to a road construction

project.

• Charts

• Pictures.

13 EXAMINATIONS: Practical 60%, Theory 40%

56

Blocklaying

PROGRAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING AND BLOCKLAYING.

Module: BLOCKLAYING Module Code: CBC 13 Contact Hours: 8hrs

Course Specification PRACTICLAL CONTENT

General Objective:


1

Select tools for specific craft

operations e.g.

a. Cutting

b. Laying

• Students to identify each of

these tools displayed

• Manson’s and bricklayer tools

2-4

Mix properly with hand or

machine, mortar suitable for

moulding of bricks

• Students to mix with hands

and machine

• Shovel

• Clay Mixer

Conduct test to determine the

compressive strength of brick

• Students perform test to

determine the compressive

strength.

• Compressive strength machine

Bricks.

5-6

Identify by visual inspection a

sound cement.

• Students carry out visual

inspection to determine sound

cement

• Cement.

Carry out the following tests on

aggregates

a. silt test

b. bulking test

c. moisture

content test

d. colour metric

e. physical test

• Students perform the different

type of tests on aggregate

• Aggregates measuring vessels,

Weighing machine colour charts

7

Test the quality and suitability of

aggregates on site using specified

site methods

• Students carry physical test on

the site.

• Visual

Prepare banding mortar to

specification for specified jobs to

industry standard.

• Students prepare mortar for

bonding to specification

• Clay, Shovel Water

8 Conduct test to determine porosity

of a given brick

• Student conduct test to

determine porosity of bricks

• Water, Bricks, Stop Watch.

57




General Objective:


Conduct test to determine

permeability of a given brick

• Student conduct test to

determine permeability of a

given brick

• Water, Brick, Stop Watch

9 –

10

Mould clay/sandscreet bricks to

specification

• Student mould clay and

sandscreet bricks to

specification.

• Clay, Mould, Shovel, Water, etc.

Apply the correct curing method

after production

• Student cure the brick using

the correct method.

• Bucket, Rubber Host

11 -

12

Set out simple rectangular

buildings on plain and on sloppy

sites.

• Students set out rectangular

building on plain and slopping

sites.

• Line, Tape Set Square Pegs

Profiles.

13 EXAMINATIONS: Theory = 40% Practical = 60%

1 - 3

Carry out simple leveling exercise

by rise and fall and by instrument

height method

• Student carry out simple

leveling exercise using rise and

fall and instrument height

method

• Tape, Measuring Tape, Chain,

Staff, Tilting Level Dumpy Level,

Rod, Pegs.

Compute reduced level from given

data.

• Students to compute level

from a given data

• Data.

4 – 6

Set out a right angle on site by the

following methods

a. builder square

b. tape and 3:4:5

rule

c. isosceles

triangle

• Students to set out a right

angle using builder square, tape

and 3:4:5, rule and isosceles

triangle methods.

• Set square, tape, line, pegs,

profile

58




General Objective:


Set out on site circular

foundations using at least two

methods e.g.

a. trammel or

tape for curves of

small radii

b. offset method

• Students to set out circular

foundation using trammel or

tape for curves of small radii

and offset methods

• Trammel, Tape, Plan, Peg line

etc.

• Nails, trammel.

7 –

12

Set out an elliptical foundation on

site using one of the following

methods.

a. the trammel

method

b. peg and line

method

• Students set out elliptical

foundation using the trammel

and peg and line method

• Trammel Tape Pegs, Line, Plan

Nails, Hammer etc.

13 EXAMINATION: Theory - 40%, Practical - 60%

1-3

Select appropriate tools and

equipment for ground floor

construction transfer/spread level

with pegs to ensure a flat surface.

Specify the appropriate concret

mix

Spread, tap and range green

concrete to the required thickness

Ram concrete appropriately

Carry out construction of

continuous concrete ground floor.

Cure concrete by damping.

• Students select appropriate

tools and equipment for ground

floor construction.

• Set up and level to specify

floor level profile or edge

boards around external walls.

• Mark on edge board positions

of internal walls.

• Trowel, Spirit Level, Profiles

Pegs, Nails Rammer, Hardcore

dumpy level aggregates water,

Mixing manually or mechanically

concrete compactor surface

vibrator buckets, host etc.

59




General Objective:


• Consolidate floor base by

ramming

• Establish hardcore datum

pegs at suitable intervals over

entire floor area.

• Fill, ram and level hardcore

bed to specify level.

• Establish floor level datum

pegs at suitable intervals over

entire floor area

•

1 - 3

• Mix concrete to specification

• Lay concrete to level around

datum pegs.

• Lay concrete on intermediate

spaces to floor level and

compact using tamper or

surface vibrator

• Cure floor by damping.

•

4-5

Construct solid walls of thickness

½B-1½B involving ends, junction

and quoins in English and Flemish

bonds

• Student construct solid walls

to the thickness of ½B-1½B

involving ends, junctions and

quoins in English bond and

Flemish bond.

• Bricks, Trowel, Spirit level

jointing board mortar.

Construct cavity walls involving

stopped ends, junctions and

quoins in English and Flemish

bonds

• Student construct cavity walls,

involving stopped ends,

junctions, and quoins in English

bond and Flemish bond.

• Bricks, trowel, spirit level jointing

board mortar.

60




General Objective:


6

Construct the following brick wall

features.

a. detached pier

b. attacked pier

c. buttress

capping

d. Square

jambs(in IB-1½B

solid wall)

e. Square and

rebated jambs in

cavity walls

• Student construct the following

brick wall

a. with

detached pier

b. attached pier

c. buttress

capping

d. Square

jambs

e. Rebated

jambs

f. Squared and

rebated jambs

in cavity walls.

• Bricks, trowel spirit level jointing

board mortar.

Construct door and window

openings in solid IB-1½B and

cavity walls applying appropriate

damp exclusion and weathering

methods at the opening.

• Students construct window

openings in solid IB-1½B

applying damp exclusion and

weathering methods.

• Brick, Trowels, Spirit level

jointing board mortar.

Construct decorative brick-work

such as block work bonded

quoins, diaper bond basket weave

and herring bone bond.

• Common bricks decorative –

bricks, trowel spirit level,

mortar.

•

7

Erect for use and dismantle timber

and tabular scaffolds in

accordance with construction

regulations

• Student erect timber and

tabular scaffold and be able to

dismantle it.

• Timber scaffold tabular scaffold.

• Coupler, Putlog Transom.

Set out and construct to

specification fire place and

chimney stack for any class of

fuel.

• Students set out and construct

fire place and chimney stack to

specification

• Bricks, trowel, spirit level joint

board hawk, mortar etc.

61




General Objective:


8-9

Set out and construct to

specification septic tank, soak-

away and inspection chamber

• Student set out and construct

septic tank, soak-away and

inspection chamber to

specification

• Set square measuring tape,

pegs, nails, digger shovel.

10-12

Construct to specification

roadside channels/gutters in given

situations

• Students construct to

specification roadside

channels/gutters.

• Mortar, bricklayer tools.

13 EXAMINATIONS: Practical 60%, Theory 40%

62


CONCRETING

Module: BLOCKLAYING Course Code: CBC 13 Contact Hours: 5hrs/wk

GOAL: This module is designed to provide the trainee with the essential knowledge and skill that will enable

him perform proficiently in all aspects of blocklayer’s work in the construction industry.

GENERAL OBJECTIVES:


1. Understand basic workshop and site safety principles and methods of applications

2. Know the use of various tools and equipment in the blocklaying trade

3. Know the method of manufacture, properties and application of different types of cement

4. Understand the basic principles and methods of manufacture, properties and application of various blocks

5. Understand the main physical properties and application of various types of aggregates and mortars.

6. Understand the main physical properties and various types of mortar.

63

PRORAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING CONCRETE

WORK.

Module: BLOCKLAYING Module Code: CBC 13 Contact Hours:


General Objective 1.0: UNDERSTAND BASIC WORKSHOP AND SITE SAFETY PRINCIPLES AND

METHODS OF APPLICATION.


1

1.1 Define and enumerate various hazards

in the workshop environment relating same

to a construction site situation, and stating

their causes and methods of prevention.

1.2 Identify dangerous components in

construction Tools and equipments e.g.

drilling machines, Grinding, cutting and

circular saw etc.

1.3 Name dangerous gases and liquids in

common use in the workshop or

construction site e.g. paint frames,


• Teacher should arrange to use

slide, video films, computer

simulation etc. to show and

explain construction tools and

equipments proper handling and

also how to practically prevent

accidents both in the workshop

and on site.

• Various movable hand tools

and machines should be

practically displayed and showed

to students and the methods of

safe handling explained.

• Show films and photo clips of

the hazards that can be caused

by poisonous and dangerous

gases e.g paint frames, co-

carbon monoxide etc.

• Slide, video player

and television video,

films (related to the

subject matter)

diskettes etc.

• Drilling, grinding

cutting machines

circular few,

• Molding machine etc.

64


WORK.



General Objective: 2.0 KNOW THE USE OF VARIOUS TOOLS AND EQUIPMENTR IN

BLOCKLAYING TRADE.


2

2.1 Differentiate between tools and

equipment/machine.

2.2 Identify the common tools and their

uses.

2.3 Identify the equipment available in

Blocklaying, viz pan mixer, mortar mixer,

concrete mixer of various type, damper.

2.4 Sketch/draw with label each of the

tools/equipment.

2.5 Select tools for specific craft operation

e.g cutting, laying.

2.6 Identify importance of care and

maintenance of blocklaying tools.

• Distinguish by defining and

tabulating tools and equipment.

• Display and name each tool

and their uses.

• Display charts.

• List operational procedure of a

periodic check/maintenance of

the equipment.

• Ask students to identify as each

is displayed.

• Real objects eg

laying and pointing

trowel, wooden float,

spirit level etc.

• Chart.

• Real object tools.

• Charts/Poster.

2.7 Workshop practice correctly handle

each tools in 2.2 above.

2.8 Carry out periodic maintenance of

equipment eg concrete mixer.

• The teacher demonstrate the

handling of the common

blocklaying tools.

• Present the equipment and

demonstrate how to start and

stop each identifying the safety

precautions involved.

• Carry out check for efficiency.

• Organise a maintenance

exercise of any of the

equipment.

65

PRORAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING CONCRETE WORK.



General Objective: 3.0 KNOW THE METHOD OF MANUFACTURE, PROPERTIES AND APPLICATION OF DIFFERENT TYPES OF CEMENTS


3.1 List the different types of cement available and give example of were they are use i.e. ordinary. Portland cement, modified Portland cement, non Portland cement. 3.2 Outline the process of manufacture of ordinary Portland cement. 3.3 Describe the general effects of variation in the properties, ordinary Portland cement e.g. variation in fineness, soundness and setting time.

• Tabulate the types of cement eg Portland cement modified Portland cement and non Portland cement their properties and area of used. • Outline by line diagrams the stages of production of ordinary Portland cement. Explain the following terms

a. hydration b. Setting and c. Hardening

• Sample of raw material eg line or chalk and clay

a. chart of stages of production of cement, b. sample of O.P.C.. c. poster of typical storage of cement in bags and silo.

• Sample of the following types of cements:-

66


WORK.



General Objective: 3.0 KNOW THE METHOD OF MANUFACTURE, PROPERTIES AND

APPLICATION OF DIFFERENT TYPES OF CEMENTS


3.4 State the meaning of the following:

- Hydration, setting and

hardening of cement

ascertain the suitability of

cement.

• Identify tests and procedures of

testing ie fineness test, sound

ness, setting time.

• Ordinary Portland

• Rapid hardening

Portland

• Low heat Portland

soleplate resisting

Portland

• Portland blast

furnace

• White Portland

• Portland pozzolana

Super sulphate

cement High Alumna

3.5 Explain the relative advantages of

handling cement in silos and in bags.

3.6 Identify by visual inspection a sound

cement.

3.7 List the procedure of carrying out the

following test and equipment.

- fineness, soundness, setting time.

3.8 Prepare a wooden plate form.

• Discuss handling procedure

both large/small quantity.

• Explain the physical tests on

cement.

• Display the

equipment/apparatus for carrying

out tests ie vicat apparatus etc.

• Demonstrate the experiment.

• Groups the students and task

them to carry out the tests.

• specimen/sample

• balance

• apparatus ie vicat

• le chatelier

• briquette mould.

67


WORK.



General Objective 4.0: UNDERSTAND THE BASIC PRINCIPLES AND METHODS OF

MANUFACTURE, PROPERTIES AND APPLICATION OF VARIOUS BLOCKS.


5-6

4.1 List the various types of blocks –

sandscrete, clay/mud, glass, facing

4.2 Outline the process of production of

sandcrete blocks.

4.3 Identify reason for the control of quantity

of mixing water.

4.4 List defects in manufactured blocks and

state their causes

4.5 State the merits and demerits of

mechanically vibrated and manual vibrated

blocks

• The teacher should display

different blocks.

• Identify materials used in

production of each.

• Distinguish between hollow and

solid.

• With line diagram the teacher

explain process of production of

sandcret block emphasizing on

the amount of water added

during the mixing added during

the mixing of mortar.

• Lesson plan

• Sandcrete blocks

(solid and hollow

• Clay or re mod

blocks.

• Glass blocks

• Hand mould

4.6 Identify two methods of curing. blocks

4.7 Give reasons for curing. blocks

4.8 List factor which affect the compressive

strength.

4.9 Estimate the amount of materials of a

given job (quantify of blocks).

• List the advantage of machine

moulded blocks over hand

moulded blocks.

• Work some examples on

quantities.

• Briefly describe the production

of other types of blocks.

• Illustrate the curing methods.

4.10 Mix properly with hand or machine mortar used for moulding block. 4.11 Describe in their own words the process of manufacture. 4.12 Mould specified number of blocks using a manual moulding machine. 4.13 Conduct tests to determine the compressive strength.

• Porosity permeability of a given block

• The teacher guide the student in production of specific number of blocks, given the material. • Determine the quantity of sand by ratio knowing the amount number of bags of cement to be used. • Explain some defects that may show and give reason for them

• Typical training workshop • Material laboratory • Cement • Sand • Head pan • Spade • Manual Moulding machines • Water.

4.14 Apply the correct curing method after production.

68


WORK.



General Objective 5.0: UNDERSTAND THE MAIN PHYSICAL PROPERTIES AND APPLICATION

OF VARIOUS TYPES OF AGGREGATES.


7-8

5.1 Define aggregates distinguish between

fine and course.

5.2 Satisfy various aggregates by their

sources and used i.e. natural, artificial, light

weight (refectory) etc.

5.3 Distinguish between the range of

particles size of coarse and tine aggregate

and explain the general effects of particles.

5.4 Describe different ways of collecting

aggregate for test

• Showing sample of fine/coarse

• aggregate i.e. sand/gravel or

granite, the

• aggregate is defined and their

use in

• construction or mortar.

• List and classify aggregate by

their nature or use.

• List the sieve sizes for grading

of both five and coarse

aggregates..

• Describe the process of

carrying grading of aggregates

from sampling of aggregates to

fineness.

• Sampling of the

aggregates.

• Quartering gauge

• Riffle box

• Balance

• A table of a complete

job

• The graphs sheet.

• Photograph of an

aggregate stock pile.

5.5 State the effect of sieve test and plot the

sieve analysis and interpret.

c. graded, gap graded

5.6 Determine the fines modulus.

5.7 State tests on aggregate and determine

the purpose of silt, bulking colour matric etc.

5.8 Describe physical tests on aggregates.

5.9 Describe various ways of storing,

aggregates on the site i.e. aggregates stock

pilling, storage bins.

• Modules and interpret.

• Describe various ways of

storing aggregates on the site.

69


WORK.



General Objective: 6.0 UNDERSTAND THE MAIN PHYSICAL PROPERTIES AND VARIOUS TYPES

OF MORTAR.


9 - 12

6.1 Define mortar and list the qualities of a

good mortar as used in construction

industry.

6.2 Specify the type and mix ratio for a

particular purpose.

6.3 Define workability.

6.4 Determine factors affecting workability.

6.5 Identify the advantages of mechanical

mixing over manual mixing.

6.6 Determine factors affecting mixing.

6.7 Determine the use of admixture in

mortar.

• Define mortar and identify the

four types of mortar and uses.

a. Line mortar.

b. Cement

mortar

c. Cement line

mortar or

ganged

d. Mortar.

e. Refractory

mortar

• Explain the two methods of

mixing and factors affecting the

choice.

• Define workability, water,

cement ratio, aggregate cement

ratio.

Sample of line light

weight aggregate.

a.

Sand

b.

bindin

g

agent

c.

concr

ete

platfor

m

d.

shovel

e.

deadp

an

f. pan

mixer

• Specify by tabulating mix ratio/type of mortar for various jobs. • Describe various ways of achieving a workable mortar. • Given a mix ratio student are asked to measure out by volume the sand and cement content. • Mix by turning until a uniform colour is achieved. • Add water to achieve required workability.

13 EXAMINATIONS: 60% Practical: 30% Theory

70


WORK.



General Objective: 7.0 UNDERSTAND THE BASIC PRINCIPLES OF LEVELLING AND BE ABLE TO

CARRY OUT SIMPLE LEVELLING PROJECTS


1 & 2

7.1 Define levelling.

7.2 Identify various tools and equipment

used in transferring levels. i.e.

a. Plumb level and pegs

b. water level

c. bunny rods and pegs

d. levelling instrument.

7.3 Describe the process of levelling i.e. rise

and fall method and instrument height.

7.4 Correctly book readings.

• Define levelling.

• List various equipment used in

levelling.

• Describe each method and

their accuracy.

• Explain the two methods.

1. rise and fall,

and

2. instrument

height.

• Compute reduced level from

the given date

• Spirit/Plumb level

• Transparent tiny

rubble tube

• Pegs

• Bonbing rods

• Dumpy level

• Titing level

• Staff

• Measuring

• Tape

7.5 Computer reduced level from given

data.

• Demonstrate with the students

the two levelling process.

• Given a particular area group

the students in fire and ask them

to run the level, book and

compute.

• Same as above

71


WORK.



General Objective: 8.0 UNDERSTAND THE PRINCIPLES AND METHODS OF PREPARING SITES

AND SETTING OUT BUILDING.


3-4

8.1 Outline the basic consideration in the

preparation of site.

g. access roads

h. temporary structure

i. hoarding etc.

8.2 Determine the importance of removal of

top soil/vegetable soil.

8.3 State problem encountered during the

construction work in the following situation

• Describe what is meant by

preliminary site work thereby

identify the temporary services

and importance.

• Discuss the method of clearing

and the reason for removal of

vegetable/top soil.

• Define giving example different

types of soil.

• a. Rock

• b. Firm

• c. Made etc

• Chart/picture of

various earth moving

equipment.

• Soil sample

• Typical set of

building drawing

• Measuring tape

• Builders squares

• Theodolite

a. water logged site

b. pit/alluvial soil

c. congested one plot side

d. site requiring demolition

of existing structures.

8.4 Explain the purpose of establishing

datum level on site.

8.5 Differentiate between layout and setting

out.

8.6 Determine the importance of building

line.

8.7 Identify various tools and materials used

in simple setting out exercise carry out

setting out using the following methods.

a. builders/iron square

b. 3. 4. 5 method

• Describe datum peg and its

establishment.

• Distinguish between layout and

setting out.

• Explain the establishment of

building list, then the other sides

of French.

• Introductions.

• The student are groups to carry

out this exercise given different

simple drawing.

72


WORK.



General Objective: 8.0 UNDERSTAND THE PRINCIPLES AND METHODS OF PREPARING SITES

AND SETTING OUT BUILDING.


8.8 Describe at least two ways to heck

accuracy of setting out.

8.9 Describe the process of construction of

trained for setting out of irregular shapes.

8.10 Identify the line and eg method.

8.11 Set out a simple rectangular building

on a plain site using a builder square iron

square.

• Sets of drawing

• School field or plain

ground

• Buildings square

• Tape etc.

General Objective 9.0: UNDERSTAND THE PRINCIPLES OF CONSTRUCTION OF FOUNDATIONS


5 - 6

9.1 Identify properties of different types of

soil.

9.2 Select the necessary tools for manual

excavation.

9.3 Describe mechanism by drawing

various earth moving equipment.

9.4 Distinguish between site and soil

investigation.

9.5 Describe various way of site drainage

• Samples of soils displayed and

properties identify on the

chalkboard.

• Display charts, posters and

pictures illustrating the

mechanism of the equipments.


drainage.

• Sump hole.


• Dewatering etc.

• With the drawing

• Real object ie

sample of soils.

• Charts.

• Pictures.

• Chalkboard.

• Complete drawing

instrument.

• T. Square.

• Pair of compass.

• Lesson notes

73

PRORAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING CONCRETE WORK.



General Objective 9.0: UNDERSTAND THE PRINCIPLES OF CONSTRUCTION OF FOUNDATIONS


9.6 Define the bearing capacity of a soil. 9.7 Solve some problems involving bearing capacity. 9.8 Identify methods of preventing collapse of trench. 9.9 Define the angle of response. 9.10 Identify with sketches the timbering system for the following situations.

a. Shallow trench in moderately firm soil. b. Shallow trench in loose soil. c. Shallow trench in water logged area.

9.11 State necessary precautions for safe working conditions. 9.12 State the reasons for the following craft practice.

• Instrument the teacher, draw the timbering suitable for a loose shallow trench and give assignment.

a. ramming of trench base before casting concrete foundation. b. Casting concrete foundation c. Anti term its application d. Ramming in layers very deep refill

9.13 Estimate quantity of soil to be carted way or back fill allowing for bulking. 9.14 Describe the functions of foundation.

a. List types of foundation. b. Sketch different types of foundations. c. Identify their uses.

• Mount the picture of a runway showing the arrangement of kerbs, precast paves and channels. • List the materials used production recement sand granite. • The teacher list these safety precaution and explain. • Give reasons for these craft operation. • These include formation of a solid and a flat base. • Avoiding loose soil • Work example using a working drawing. • List to function of foundation with uses of various foundation

74

types.

75


WORK.



General Objective 10.0: UNDERSTANDF THE BASIC PRINCIPLES OF CONSTRUCTION OF

CONCRETE GROUND FLOORS


7 - 8

10.1 Identify the functions of ground floors,

solid and suspended.

10.2 Sketch sections across.

a. Solid ground floor

b. Suspended floors

c. German floors

10.3 Identify by labeling the members with

sizes.

10.4 Show the placement of main and

distribution bars in suspended floor.

10.5 State the functions of damp proof

course.

• The teacher lists the functions.

• Sketch the types of floors on

the chalkboard.

• a. solid

• b. suspended

• Emphasize on the sizes of

components and the point of

placement and give reasons.

• List some damp proof

materials.

• Chalkboard

• Lesson notes

• Sketches

• Drawing

• Real object eg.

Hardcore damp proof

materials.

10.6 List common damp proof materials.

10.7 Give reason for the following.

a. minimum thickness of

over-site concrete

b. placement correct

positioning of DPC

c. concrete mix for over site

concrete.

10.8 State the functions of hardcore.

10.9 Specify the quality and type of local

material suitable

• Organise a visit to a standard

construction site Introduce the

students provide necessary

safety wears and ask students to

questions and jot observations.

• A typical project site

where casting of over-

site concrete is in

progress.

76


WORK.



General Objective 11.0: UNDERSTANDF THE BASIC PRINCIPLES OF CONSTRUCTION BLOCK

WORK TO SPECIFICATION


9 - 10

11.1 State the functions of a block wall.

11.2 Identify the common bond in block wall

construction.

11.3 Sketch different provision for future

continuation of job.

11.4 Describe the following types of walls –

load bearing, partition walls, parapet, party

etc.

11.5 Interpret block work construction form

a working drawing.

11.6 Describe with sketches /drawing the

following methods of bridging openings.

a. precast lintel

b. cast insitu lintel

c. soldier bricks with

reinforcement rod/angle

iron

d. Arches - Semi-circle

e. segmental;

f. camber

g. three cantre

11.7 Sketch the following features in wall

construction.

a. Sill

b. Canopy,

c. copping,

d. attached piers

e. detached piers

• The teacher list and explain the

function of brick wall.

• Sketch - Toothing

• c. raking back on the black

board and explain their uses.

• List the different types of walls

and give brief definition and

uses.

• Explain or differentiate between

precast and cast in situ..

• Sketch a typical mould and

form work for each.

• Draw to scale showing

construction lines and parts of a

semi circle arch.

• Give assignment to draw -

three centre arch.

• Lesson plan

• Chalk board

• Charts

• Drawing/sketches.

• Same.

77


WORK.



General Objective 11.0: UNDERSTANDF THE BASIC PRINCIPLES OF CONSTRUCTION BLOCK

WORK TO SPECIFICATION


TERM

2

11.8 Estimate the quantity of material

allowing for damages using a working

drawing.

11.9 Define a threshold

11.10 Sketch a threshold.

11.11 Describe method of construction.

11.12 Sketch fixing of door/window frames

as the construction continues.

11.13 Sketch fixing of door/window frames

at the completion of construction.

11.14 State advantages and disadvantages.

11.15 Distinguish between pointing and

jointing sketch different types used in wall

construction.

• And gothic arches.

• Sketch sill, canopy, copping,

pier and state their uses.

• Work some examples and give

assignment.

• Write some example and give

assignment.

• Sketch the two methods of

fixing giving the importance of

stile in wooden and metal

frames.

11.16 Set out and construct to specification

attached and detached piers.

11.17 Interpret given working drawing, set

out and construct brick walls circular

complain.

11.18 Set out and construct to specification

brick.

11.19 Thresholds.

11.20 Select tools for pointing/jointing

exercise.

11.21 Mix a workable mortar using

line/admixture

• With a prepared

rawing/handout, the teacher set

out walls with attached pier and

demonstrate the construction

process for course 12.7.

• This is repeated in the following

cases at separate practical

session.

• Curved wall on plan

• Threshold

• Jointing and pointing.

• Handout/drawing

• Common bricklaying

tools

• Line mortar.

78


WORK.



General Objective 12.0: UNDERSTAND THE PRINCIPLES OF FIXING OPENINGS


11-12



construction.

12.2 Describe the method of converting and

seasoning timber for carpentry and joinery

work.


drillings e.g. light ventilation, privacy,

exclusion of external weather.

12.4 Describer with sketches various types

of timber and metal doors and windows

including their node of operation.

12.5 Describe various types of door and

window ironmongery and state their uses.


weathering in structures (e.g. sill) at

openings and describe with sketches

structures used in simple dwellings.

• Explain the difference between

wooden shutter windows and

doors, steel windows and doors,

crittal-Hope type Windows and

doors.



• Different types of

doors and windows

aluminum doors and

windows

• Picture, charts

13 EXAMINATIONS: Practical = 60%; Theory = 40%

79


WORK.



General Objective 13.0: UNDERSTAND THE PRINCIPLES OF DESIGN AND CONSTRUCTION OF

STAIRS.


1-2

13.1 Describe with the aid of sketches, the

different types of stairs e.g. straight flight,

dog-open well, spiral etc.


standards for the construction of stairs e.g.

riser tread relationship, minimum headroom

standard sizes of structural members etc.

13.3 Explain and define the basic principles

of construction of a straight flight

timber/concrete/steel stairs.


concrete and steel stair cases to

the student.

• Pictures, Real

Objects films, Timber

Stairs

General Objective 14.0: UNDERSTAND THE BASIC PRINCIPLES OF CONSTRUCTING

DIFFERENT TYPES OF ROOFS


3-4


basic roof types and profiles e.g. beem and

slabs as in concrete flat roofs ferro cement

lattice and similar guiders, trusses

(However truss, double how, for truss, truss

rafter, standard fink french Truss, North light

truss, couple, umbrella, bow string, etc),

portal frames, shall roofs, folded plates etc.

14.2 Describe the materials maximum

allowable span and application of the


14.3 Name and define various roof covering

suitable for tropical use and identify

situations suitable for their use.

• Show pictorial representation of

the various roof types to the

student while describing each.

• Explain the span used in

various roof types.

• Timbers, Roofing

Sheets

80


WORK.



General Objective: 15.0 UNDERSTAND THE PRINCIPLES OF CONSTRUCTION AND

DISMANTLING OF SCAFFOLD IN ACCORDANCE WITH CONSTRUCTION REGULATION


5-6

15.1 Describe with sketches the following

scaffolds.

a. bracket scaffold

b. putlog

c. independent

d. trustle

15.2 State situation in which each is most

suitably used.

15.3 Identify the members.

15.4 Explain the relative advantage of

timber and tubular scaffold.

15.5 Describe various hoisting equipment

for hoisting material on site.

a. gin wheel

b. scaffold crane

c. stationery crane

d. mobile cranes

• The teacher list the types of

scaffolds and sketch and identify

part.

• Sketch a gin wheel as it is

attached to scaffold.

• Sketch supports with bridle at

window opening.

• Identify safety precautions

peculiar to scaffolding and

cranes.

• Lesson plan

• Real objects – gin

wheel and chain

• Pictures, posters of

cranes

• Couplers

• Other components.

• Scaffold tubes

• Couplers

• Spanners

• Wrench etc.

15.6 Identify the components and use.

15.7 Erect a put-log scaffold.

15.8 Erect transon scaffold.

15.9 Erect timber/bamboo scaffold.

15.10 Dismantle the putlog scaffold.

15.11 Dismantle transom scaffold.

15.12 Dismantle timber scaffold.

• Show each components and

name.

• Show tools necessary to erect

ie spanner wrench etc. scaffold.

• Demonstrate in steps the

process of erection.

• Placing the sole and base plate

at interval with standards.

• Demonstrate how a gin wheel

is attached to the scaffold.

81


WORK.



General Objective: 16.0 UNDERSTAND THE BASIC PRINCIPLES OF CONSTRUCTION TO

SPECIFICATION FIRE PLACE AND CHIMNEY FOR COOKING RANGE.


7

16.1 Identify types of materials.

16.2 State the qualities/properties expected.

16.3 State basic consideration in the design

and construction of fireplace and chimney

stock e.g. good control of draught, type of

fuel/location etc.

16.4 Prepare kitchen layout and working

drawing incorporating details of a typical fire

place and chimney stack for the following

classes of fuel.

a. fire wood

b. coal

c. gas/paraffin

• List the properties of materials

for fire place construction.

• Give examples

• Show a typical drawing

incorporating each case.

• Sketch different joints at lining

of flues by pergetting.

• Lesson plan

• Charts

• Drawings

• Sketches

16.5 Sketch and describe various methods

of sealing joints between stack and tool

covering (weathering around tack) e.g. use

flashing fillet with ratio 1.1

16.6 Set out correctly single and double

breast fire place.

16.7 Build fire place.

16.8 Identify hearth.

16.9 Lining the flue as the work is in

progress (pergetting).

• The teacher with the aid of a

pre-prepared drawing

demonstrate the setting out and

build the first two courses and

engage the students in the

exercise while the teacher watch

and correct if necessary

• handout

• typical brick work

workshop

• drawing

• brick laying tools.

82


WORK.



General Objective: 17.0 UNDERSTAND THE PRINCIPLES OF CONSTRUCTION AND BE ABLE TO

CONSTRUCT COARSED AND UNCOARSED RUBBLE WALLS.


8 - 9

17.1 Identify by name various types of stone

in Nigeria suitable for walling i.e granite

marble etc.

17.2 Describe the process involve in

preparation of plastering.

17.3 Identify various bonding patterns

available.

17.4 Specify mortar mix for stone setting.

• Show the students different

types of stones.

• In tabular form state the

process involved in preparation

of stone from rock.

• Sketch each bonding pattern

available.

• Identify mix proportion of

mortar for setting of stone wall.

• real objects

• stone samples

• pictures


DRAINAGE SYSTEM.


10 -

11

18.1 Distinguish between a sewer and a

drain.

18.2 Explain the basic principles of a good

drainage system.

18.3 Sketch (1) combine system (2)

separate system.

18.4 Describe with detail sketches the

structural detail of.

a. Septic tank

b. Soak-away

c. Inspection

chamber/manhole

d. Cesspool

e. Intercepting chamber

18.5 Explain the use and state the standard

size of.


drain pipes.

• Plastic

• asbestos

83


WORK.




DRAINAGE SYSTEM.


a. plastic drain pipes

b. asbestos drain pipes

c. galvanized steel pipes


drain pipes

• Plastic

• asbestos


• gauge

• hand pump

• smoke chamber

• touch

• chart

• picture

18.6 Describe with sketches the use of pipe

fitting eg.

a. connecting sockets

b. taper pipe

c. junction-square square

d. saddle junctions

e. -bends

f. channels

g. gullies

h. interceptors


• gauge

• hand pump

• smoke chamber

• chart

• picture


determining fall of underground drain.

18.8 Describe the following methods of

testing drains.

a) Water, b) smoke, c) ball

18.9 Interpret from working drawing construction of details of simple drainage systems involving trench excavation, preparation of base, laying of pipes, gullies. 18.10 Set out for excavation of septic tank and soak away. install (1) bath (2) wash/hand basin (3) W. C suite bidet (5) urinal (6) sink.

• display a typical mechanical drawing • pick detail from the drawing and explain fixing of fittings. • Using a typical standard site plan locate. • soak-away • septic tank • cesspool as the case may be

• site plan • mechanical drawing • the accessories • bath • wash hand basin • W.C. suite • Bidet • Urinal • Sink

WORKSHOP PRACTICE/FIELD WORK

84


WORK.



General Objective: Understand the basic principles of laying Kerbs and surface drainage.


12

19.1 Sketch and describe different forms of

kerbs and state. materials for production

19.2 Sketche method of laying precast

concrete kerbs.

19.3 Determine standard sizes of kerbs

19.4 Choose the quality of bricks and

jointing mortar suitable for construction of

channels/gutters.

19.6 Give reasons for battering the sides of

channels and state the factors which

determine the better angles

19.7 Construct to specification roadside

channel/gutters

• Mount the picture of a runway

showing the arrangement of

kerbs, precast channels.

• List the materials used

production i.e cement sand and

granite

13 EXAMINATIONS. 60% Practical ; 30% Theory

85

Concreting


CONCRETING

MODULE: CONCRETING Course Code: CBC 14 Contact Hours: 12hrs/wk

GOAL: This module is designed to provide the trainee with the basic knowledge of the properties and

application of concrete as well as the skill in the production of sound concrete structures.

GENERAL OBJECTIVES:


1. State the functions and methods of care of common concreting tools and equipment

2. State the properties of aggregates in relation to their use in concrete production

3. Know the properties and application of different types of cement

4. Understand the use and application of stones in construction

5. Relate the properties of concrete to its application as a construction material

6. Understand the use and application of earth soil and latrite in construction

7. Understand the principles and methods of proportioning, mixing and testing concrete and be able to carry

out the operations.

8. Know the principles and methods of handling, placing and curing concrete.

9. Understand the principles and methods of constructing joints in concrete structures

10. Understand the use of form-work in construction and the principles of construction.

11. Understand the basic principles and methods of reinforcing simple concrete structures.

12. Understand the basic principles and conventional methods of structural detailing.

13. Produce sound reinforced and mass concrete structures to specification.

14. Understand the basic principles of production and use of pre-stressed concrete in the construction

industry

86

PROGRAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING & CONC.

WORK

Module: CONCRETING Module Code: CBC 14 Contact Hours

12hrs./wk

Module Specification:

General Objective 1.0: The functions and methods of caring for common concreting tools and

equipment

Week Specific Learning Objective: Teachers’ Activities Resources

1

1.1 Identify and describe with sketches the

concreting common hand tools and equipment eg

club hammer, tapping rod, wheel barrow, head

pan, mixing board, spirit level tamper.

1.2 State the functions of the tools and equipment

in 1.1

1.3 State reasons f or routine care and

maintenance of the tools and equipment.

• The teacher demonstrates

to the students how these

tools and equipment are

cared for and maintained

• Wheel barrow, sprit

it level, head pan,

club hammer etc.

General Objective 2.0: UNDERSTAND THE PROPERTIES OF AGGREGATES IN RELATION TO

THEIR USE IN CONCRETE PRODUCTION.


2

2.1 Classify aggregates as natural and artificial,

and list examples under each class and state their

uses.

2.2 Distinguish between the range of particles size

of coarse and fine aggregates and state the

factors to be considered in specification of

maximum particle size for given jobs.

2.3 State the purpose of sieve test.

2.4 Explain the purpose of the following tests and

describe methods of carrying them out:

a. silt

b. bulking

c. mixture content

d. colour metric

e. physical tests.

2.5 Specify the quantities of aggregates (fine and

coarse) for concrete work and state reasons for

the specification.

• The teacher lists the

natural and artificial

aggregates to students eg

natural – sand, gravel,

crushed stone, etc. Artificial

– foamed slag, clinker

breeze, slag, saw-dust.

• The teacher gives

examples of factors to

include (a) dimension of

concrete member to be

cast. (b) cover for

reinforcement (c) Ease of

handling wet concrete

(workability).

• Sketches, sand

gravel crushed stone

saw-dust etc.

87


WORK


12hrs./wk


General Objective 2.0: UNDERSTAND THE PROPERTIES OF AGGREGATES IN RELATION TO

THEIR USE IN CONCRETE PRODUCTION.


2.6 Use the test in 2.4 to determine the quantities

of given samples of aggregates.

2.7 Describe three methods of measuring the

quantity and suitability of aggregates on sites.

2.8 Describe methods of storing and protecting

aggregates on sites e.g. Stock piling, use of

storage bins, rock ladder etc.

• Teacher/Student practice

sieve test procedures as it

involves aggregate

sampling, sieving recording

of results.


the tests with the students

in the school laboratory e.g.

Silt them out, test colour-

metric test, physical test.

General Objective: 3.0 AT THE END OF THE MODULE STUDENTS WILL UNDERSTAND BASIC

PRINCIPLES OF MANUFACTURES, PROPERTIES AND APPLICATION OF DIFFERENT TYPES

OF CEMENTS.


3

3.1 List the properties and uses of the following

types of cements: Ordinary Portland, Rapid

hardening Porland, Sulphate resiting Portland,

Portland-blast furnace, white Portland, Portland

Pozzolana, super sulphated cement and High

alumina.

3.2 Describe the process of manufacture of

ordinary Portland cement.

3.3 Explain the importance of the following

properties of ordinary Portland cement (i) fineness

(ii)Soundness (iii) Setting time.

3.4 Define hydration and distinguish between

setting and hardening of cement.

• Carry out simple tests to

determine fineness,

Soundness and setting time

of ordinary Portland

cement.

• Show a line diagram of

the production process of

ordinary Portland cement.

Charts

88


WORK


12hrs./wk


General Objective: 3.0 AT THE END OF THE MODULE STUDENTS WILL UNDERSTAND BASIC

PRINCIPLES OF MANUFACTURES, PROPERTIES AND APPLICATION OF DIFFERENT TYPES

OF CEMENTS.


3.5 Explain the relative advantage of handling

cement in silos and in bags and state storage

precautions.

3.6 List health hazards related to cement handling

and state the precaution measures against them.

3.7 Describe three methods of assessing the

quantity and suitability of ordinary Portland cement

on site

General Objective: 4.0 UNDERSTAND THE USE AND APPLICATIONS OF STONES IN

CONSTRUCTION WORK


4-5

4.1 Describe the various types of stones used in

construction works such as, lime stone, sand

stone granite, slates etc.

4.2 Enumerate the uses of each of the stones.

4.3 Describe the composition of the stones.

4.4 Discuss the methods of production of these

stones.

4.5 Describe the characteristics such as specific

weights, compressive strength, water absorption,

effect on fire, moisture expansion, effect of

chemicals, resistance to salts, thermal expansion,

conductivity, durability

• The teacher guides the

students to make models of

walls, cladding, plinths,

steps, floor stairs, coping

etc with stones.

• Charts, various

types of stones.

89


WORK


12hrs./wk


General Objective 5.0: UNDERSTAND THE PROPERTIES OF CONCRETE IN RELATION TO ITS

APPLICATION AS CONSTRUCTION MATERIAL.


5.1 Define concrete and state the functions of

each ingredient in concrete.

5.2 Outline the properties that make concrete an

important construction material eg mould ability,

strength, durability, fire resistance etc.

5.3 Explain the use of mass/dense and light-

weight concrete in construction.

5.4 Assess concrete terms of the following

properties – Drying Shrinkage, fire resistance,

thermal movement compressive and tensile

strength, sound transmission permeability, creep

Durability, Density.

• The teacher and the

students mix fine and

coarse aggregates with

cement and add water to

the correct ratio to form the

concrete.

• Examine the mix and tell

the texture, colour and also

observation

a. Charts concrete.

b. Chart

c. Cement

d. Sand

e. Water

General Objective 6.0: UNDERSTAND THE USE AND APPLICATION OF EARTH, SOIL AND

LATRITE IN CONSTRUCTION WORKS.


6.1 Describe earth, soil and latrite.

6.2 Distinguish between earth, soil and latrite.

6.3 Discuss the various applications of soils, earth

and latrite.

6.4 Enumerate the characteristics of earth soil and

latrite.

6.5 Explain the problems of earth soil and latrite.

6.6 Discuss the remedies of the problems

explained above.

6.7 Discuss the various field tests required to carry

out on earth, soil and latrite.

6.8 Collect samples by standard methods.

• Carry out tests on earth,

soil and latrite by the

following tests methods (a)

Touch, washing, visual,

water retention, dry

strength, wet-sieving grain

size etc.

• Samples of earth,

soil and latrite.

90


WORK


12hrs./wk


General Objective: 7.0 UNDERSTAND THE PRINCIPLES AND METHODS OF PROPORTIONING,

MIXING AND TESTING CONCRETE AND BE ABLE TO CARRY OUT THE OPERATION.


8 –

11

7.1 Distinguish between designed mix and

prescribed mix and state factors to be considered

in determining mix ratio e.g. Strength of finished

concrete, types of concrete, structure to be cast

etc.

7.2 Define water:– cement ratio and aggregate:

cement ratio and explain their relationship with the

quality of mix and hardened concrete.

7.3 Specify (a) the quality of water for mixing

concrete (b) mixing ratios for a common range of

jobs e.g. Strip foundation, basement floor, floor

slab, lintel, concrete-roof and roof gutter, road

kerbs, etc..


the mixing ratios for a

common range of jobs like

strip foundation.

• Operate and maintain a

given light duty batch mixer

e.g. 31/2 T mixer.

• The teacher allows every

student to operate the

mixer under his guide.

• Pre-cast – Slabs

batch mixer charts

batch mixer charts.

• Charts batch mixer.

7.4 Define batching and describe two methods of

batching i.e. by volume and by weight-taking into

account necessary precautions to ensure quality.

7.5 Distinguish between the following mixers in

terms of their main features, working principles

and uses (a) Continuous mixer (b) batch mixer

(tilting and non-tilting).

7.6 Explain the use of the following mixers in (i)

Central batch – mixing plant (ii) transit mixer, truck

mixer (iii) stationary mixer. E.g. Paddle mixer).

• Explain the difference

between the various

mixers.

91


WORK


12hrs./wk


General Objective: 7.0 UNDERSTAND THE PRINCIPLES AND METHODS OF PROPORTIONING,

MIXING AND TESTING CONCRETE AND BE ABLE TO CARRY OUT THE OPERATION.


7.7 Explain methods of ensuring least variation in

mix quality from a batch mixer.

7.8 Identify common admixtures and explain their

applications. Examples of admixtures may include

(i) Pudlo (ii) calcium chloride (iii) air – entraining

agents; (iv) fly-ash (v) Retarders (vi) impermo etc.

7.9 Calculate the quantity of materials required for

producing a specified batch using a prescribed

mix.

• Give the students

assignment to calculate the

quantity of ingredients

required in any given batch

with prescribed mix.

• The teacher with the

students carry out slump

test in the workshop.

• Organise and execute

mixing operations.

7.10 Define workability and state factors which

determine workability.

7.11 Explain the reduction in bulk of the

aggregates during mixing and state the

appropriate shrinkage value.

7.12 Determine workability of a given mix sample

by slump test or compacting factor test

7.13 Specify the slump range for common

concrete structures.

92

PROGRAMME: NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING & CONC. WORK

Module: CONCRETING Module Code: CBC 14 Contact Hours 12hrs./wk


General Objective 8.0: UNDERSTAND THE PRINCIPLES AND METHOD OF HANDLING, PLACING AND CURING OF CONCRETE.


8.1 Explain the use of the following equipment in wet concrete transporting and placing operations – head pan, steel concrete barrow, power barrow, tower crane skip, mobile truck mixer conveyor belt, pipe line. 8.2 State the precautions (operational and safety) to be taken when using the equipment in 8.1. 8.3 Explain the use of pumped and ready-mixed concrete taking into account their relative advantages and precautions to be taken during application. 8.4 List factors to be considered in the choice of methods of transporting wet concrete to placing point e.g. Quantity to be handled, distance to placing point, site conditions etc.

The teacher demonstrates with the students the use of the equipment in wet concrete transporting and placing operations. The teacher practise with the students the use of pumped and ready-mixed concrete. • The teacher demonstrates the use of common tools for compacting wet concrete. • A visit the a constructional site is advised.

• Head pan steel concrete barrow charts. • Rammer/tamper • Sketches and charts of raft, pad, strip foundations. • Lintel, bean & Column. • Floor slab, walls etc.• Cube mould.

8.5 Outline the safety and operational precautions to be observed when placing wet concrete by the methods in 8.1 above. 8.6 State reasons for vibrating or compacting wet concrete. 8.7 Identify common tools for compacting wet concrete and describe with sketches their main features and methods of use (compacting tools may include poker vibrators, clamp on vibrators, rammer/tamper. 8.8 Outline safety and operational precautions in the use of mechanical vibrators. 8.9 Identify appropriate compacting tools for the following concrete structures – (i) raft foundation (ii) pad foundation – (combined and Isolated) (iii) strip foundation (mass and reinforced) (iv) Lintel and bean (v) Column (vi) floor slabs (vii) walls (including parapet walls)(vii) concrete pavement (viii) concrete ground floor.

• Teacher demonstrates testing of cube with the students.

• Sketches and charts of raft, pad, strip foundations. • Lintel, bean & Column. • Floor slab, walls etc.• Charts cube mould

93


WORK


12hrs./wk


General Objective 8.0: UNDERSTAND THE PRINCIPLES AND METHOD OF HANDLING, PLACING

AND CURING OF CONCRETE.


8.10 Describe the methods of concreting under

the following conditions – (a) very hot and dry

weather (Severe harmattan) (b) wet weather (c)

under weather.

8.11 State reasons for curing concrete and

describe common curing methods eg. Pending,

sprinkling, wet covering, use of water-proof paper,

curing. Compounds, plastic sheets, steam curing.

8.12 Identify situations where the curing methods

in 8.11 above are most suitable.

8.13 Describe the making and testing of cube

taking into account precautions to be taken

against variation of result.

8.14 Determine by the cube test the compressive

strength of given mix sample.

Charts

Cube mould

13 EXAMINATIONS: Theory 40%, Practical 60%

94


WORK


12hrs./wk


General Objective 9.0 UNDERSTAND THE PRINCIPLES AND METHODS OF CONSTRUCTING

JOINTS IN CONCRETE STRUCTURE.


1-2

9.1 Explain with sketches, the purpose of the

following joints in concrete structures – (a) Joints

in water tanks and reservoirs (b) Construction

joints (c) sliding and slip joints.

9.2 Name common jointing materials and state

their specific applications Example of materials

may include (a) bitumen (b) asphalt (c) corking

compound (d) soft board (e) mastic etc

9.3 Describe the method of making construction

joints in structures such as floors, beams, column,

concrete roofs and parapets, taking into

consideration, construction precautions.


constructing expansion/contraction joint in

structures such as floors, columns, concrete roofs,

foundation (strip and pad).

9.5 Apply the knowledge of shear stress

distribution in structures in the determination of

construction joint location at the end of the day’s

work.

• The teacher sketches

these joints on the chalk

board and instructs the

students, to draw them into

their note books.

• Teacher sketches

expansion and contraction

joints in floors, columns,

concrete floors, strip and

pad foundations for the

students to draw.

• Construct with the

students, expansion,

contraction, compression

and construction joints in

concrete structures in the

workshop.

• Sketches on joints

in water – tanks and

reservoirs etc.

• Sketches showing

expansion and

contraction joints in

floors, columns

concrete roofs and

strip and pad

foundation.

95


WORK


12hrs./wk


General Objective 10.0: UNDERSTAND THE USE OF FORMWORK IN CONSTRUCTION.


3-4

10.1 State the functions of formwork.

10.2 Outline the basic requirements in formwork

construction eg adequate support, rigidity, use of

appropriate materials, ease of stripping, leak-

proof, repetitive use, minimum cost

10.3 Explain the relative advantages of steel and

timber forms.

10.4 Explain with sketches the construction of

forms for the following structures (a) Column, (b)

beam and slab (c) lintel (d) concrete arch (circular,

semi-circular equilateral, gothic arch) straight

flight, dogleg stairs, open – well stairs window

hood, concrete fascia parapet wall, road side

channel or gutter.

• The teacher explains the

functions of formwork and

the basic requirements in

formwork construction (1)

adequate support (2)

rigidity (3) Use of

appropriate materials (4)

Ease of stripping leak-proof

repetitive use.

• In the workshop the

teacher demonstrates to

the students how soft soap

solution and grease are

applied to formwork.

• Soft soap Solution

Grease

10.5 Outline the procedures and precautions to be

taken in striking formwork from the structures in

10.4 above and in subsequent storage and

preservation.

10.6 State the functions of mould oil and form

liners and specify their qualities.

Name the types of mould oil in common use and

state the necessary precaution in their use, e.g.

soft soap solution, grease etc.

96


WORK


12hrs./wk


General Objective: 11.0 UNDERSTAND THE BASIC PRINCIPLES AND METHODS OF

CONSTRUCTING CONCRETE STRUCTURES.


5-6

11.1 Explain the need for reinforcing concrete.

11.2 Illustrate the following stress effects in

concrete structures – bending, buckling,

stretching, twisting, shearing.

11.3 Illustrate the normal stress effects in the

following concrete structures – (a) foundations,

retaining walls, columns, beams, slab (simple

supported continuous and cantilevered).

11.4 Make sketches to show typical methods of

reinforcing the following concrete structures,

beams (free support beams) lintel, column, floor

slab (one way and two-way span) straight flight

and dog-leg stairs, roof gutter and parapet wall,

road slab, retaining walls, cantilevers

• The teacher draws on the

chalk board stress effects in

concrete structures on

bending, buckling,

stretching, twisting

shearing.

• After explaining them to

the students, the teacher

instructs them to the notes

on the chalkboard into their

personal notes.

• Sketches,

97


WORK


12hrs./wk


General Objective 12.0: UNDERSTAND THE BASIC PRINCIPLES AND CONVENTIONAL

METHODS OF STRUCTURAL DETAILING.


7-8

12.1 Interpret common representation and

symbols in structural drawings e.g. R,Y,X,B,T, alt,

Stg, a,b,r, etc.

12.2 Illustrate with Sketches the conventional

rules in structural detailing.

12.3 Illustrate the conventional methods of calling

up; (a) bars eg 26 R 1011 – 200 (b) kicker (c)

blinding (d) Cover.

12.4 Interpret simple structural drawings to obtain

formwork construction drawings to obtain

formwork construction and steel fixing details

12.5 Produce reinforcement schedules using

appropriate structural detailed drawings.

• The teacher instructs the

students to draw the

conventional rules in

structural detailing as

shown on the chalkboard.

• Sketches and

drawings.

98


WORK


12hrs./wk


General Objective 13.0: UNDERSTAND HOW TO PRODUCE SOUND REINFORCED AND MASS

CONCRETE STRUCTURES TO SPECIFICATION.


13.1 Identify common reinforcing steels and state

their uses (reinforcing steels should include plain

round bars, plain square bars, twisted bars, steel

fabrics etc.

13.2 Specify with reasons the qualities of

reinforcing steel for concrete production.

13.3 State reasons for the use of the following:-

(a) blinding at foundation (b) hardcore (e) kicker at

column base, (d) spacer block (concrete biscuits),

(e) starter bars at column base.

13.4 Describe methods of casting and curing the

following in-situ concrete structures in wet or hot

and dry weather (severe harmattan) conditions.

- Strip foundation (mass and

reinforced.

- Lintels, beams, columns.

- Ground and upper floors

- Walls (including parapet)

- Large areas eg petrol station

• The teacher practicalizes

the use of common

reinforcement materials like

bars, steel fabrics etc in

concreting with the students

participation.


the uses of blinding at

foundation, hardcore kicker

at column base spacer

block and starter bars at the

workshop with the students.

• Organise and execute the

production of in-situ

reinforced concrete

structures eg simple

structural frames, culverts,

channels and stairs.

• Sketches, and short

lengths of:-

• Plain round bars.

• Plain square bars.

• Twisted Fabrics

• Steel fabrics

• Get some spacer

blocks, starter bars

kicker etc.

• Charts and field-trip

13.5 Fix to specification steel reinforcements in

sample concrete structures eg. Column, beam,

floor slab, parapet wall of simple building.

13.6 Describe methods of producing the integral

finishes on insitu concrete:-

a. exposed aggregate

b. board marked surface

c. screen-board damped and

rolled surface

• Cast to specification

precast units of the

following:

• Concrete blocks

• paving slabs

• Kerbs

• Fence posts

• Terrazzo Tiles


students produced

specified integral finish on

concret

99


WORK


12hrs./wk


General Objective 13.0: UNDERSTAND HOW TO PRODUCE SOUND REINFORCED AND MASS

CONCRETE STRUCTURES TO SPECIFICATION.


13.7 Fix to specification steel reinforcements in

sample concrete structures eg. Column, beam,

floor slab, parapet wall of simple building.

13.8 Describe methods of producing the integral

finishes on insitu concrete:-

a. exposed aggregate

b. board marked surface

c. screen-board damped and

rolled surface

• Cast to specification

precast units of the

following:

• Concrete blocks

• paving slabs

• Kerbs

• Fence posts

• Terrazzo Tiles


students produced

specified integral finish on

concrete structures

General Objective 14.0: UNDERSTAND THE BASIC PRINCIPLES OF PRODUCTION AND USE OF

PRETRESSED CONCRETE IN THE CONSTRUCTION INDUSTRY.


14.1 State the advantages of pre-Stressed concrete e.g.

a. reduced tendency to cracking b. Non-use of shear reinforcement c. Comparative to reduction in size and weight of members etc.

14.2 Explain the meaning of pre-tensioning and post-tensioning and state their relative advantages. 14.3 State reasons for the use of the following materials in the production of pre-stressed concrete.

a. Medium and high tensile wires or rods b. High strength concrete

• Visit a production site with students to have on-the-site experience production process of pre-tension and post-tension concrete.

• Charts and samples of these units.

100


WORK


12hrs./wk





14.4 Describe at least one methods of producing-

a. Pre-tensioned concrete units

b. Post-tensioned concrete units.

14.5 State with examples the use of pre-stressed

concrete in the Nigerian construction scene

14.6 State necessary safety precautions in the

production of pre-stressed concrete.

13 EXAMINATION

1-3

Carry out the following operations as regards

sieve analysis:

a. aggregate sampling

b. quartering

c. sieving

d. recording of results and

e. interpretation of results

• The Teacher should guide

the students to carry out the

given test/project work to

specification and supervise

them adequately to obtain

the results to industry

standard.

• Sieves

• Aggregates Sample

4 - 6

Experimentally carry out the following tests on aggregates:

a. silt test b. bulking test c. moisture content test d. colourmetric test e. physical test f. record result g. Interpret results.

• Aggregate samples • Measuring vessels • Weighing machine

7 - 9

Carry out laboratory tests on cements a. Student should carry out the following tests on ordinary Portland cements b. fineness c. Soundness d. Setting time

- do - • Sample of ordinary Portland cement • Water • Time Clock

101


WORK


12hrs./wk





10 –

12

Produce good quality concrete by manual method

after batching either by volume or by weight.

- do- • Mixing surface

• Aggregates

• Cement

• Water

• Bricklayers tools

Using light duty batch mixer (e.g. 3½T mixer)

produce good quality concrete after batching.

- do - • 3½T mixer

• Aggregates

• Cement

• Water

13 Examination: Practical 60%; Theory 40%.

Carry out concrete transportation placing and

curing operations.

Student should transport the already mixed

concrete by any specified mode, place and cure

the concrete using appropriate

materials/equipment as specified

- do- • Concrete mix

• Transportation

equipment

• Curing materials or

equipment

5 – 6

While carrying out a simple concreting job student

should construct the following joints.

a. Expansion/contraction joint

b. Compression/construction

joints

- do- • Ready mixed

concrete

• Masons’ and

bricklayers’ tool

7-8

With the ready mixed concrete student should

produce concrete biscuits.

Cast concrete spacers for use in a given situation.

- do- • Ready mixed

concrete

• Mould

• Bricklayers’ tool

102


WORK


12hrs./wk





9 &

10

Fix to specification steel reinforcement in simple

concrete structures cast to specification precast

concrete units.

Student should fix steel reinforcements in simple

concrete structures e.g.

a. Column

b. Floor slab

c. Parapet wall

Cast to specification the following pre-cast units.

a. concrete blocks

b. Paving slabs

c. Kerbs

Fence posts Terrazzo tiles

- do- • Steel reinforcement

• Simple concrete

structures.

• Concrete mix

• Mould

• Cement

• Aggregates

• Bricklayers’ tools

• Water

EXAMINATION 70% Practical ; 30% Theory

103

Wall, Floor and Ceiling Finishing


CONCRETING

MODULE: WALL, FLOOR AND CEILING FINISHING Course Code: CBC 15 Contact Hours: 12hrs/wk

GOAL: This module is designed to provide the trainee with the basic knowledge finishing materials related to

the builders work and to enable him apply such finished proficiently.

GENERAL OBJECTIVES:


1. Know the function and methods of care of finishing tools and equipment.

2. State the characteristics and application of various finishing materials

3. Understand the principles and technique of insitu floor finishes and be able to lay specified insitu finishes

proficiently.

4. Understand the principles and techniques of laying pre-cast floor finishes and be able to lay materials to

specification

5. Understand the principles and techniques of laying synthetic floor tiles and be able to lay the materials to

specification

6. Understand the principles and be able to organise and execute external and internal rendering.

7. Understand the principles and techniques of fixing various walls and ceiling tiles and be able to fix the

materials to specification.

8. Understand the method of fixing and be able to fix claddings to specification under supervision

9. Understand the principles and be able to apply premixed renderings.

104

PROGRAMME: NTC IN BRICKLAYING/BLOCKLAYING/CONCRETE WORK

Module: CBC 15 WALL, FLOOR/CEILING FINISHING Module Code: CBC 15 Contact Hours:

2hrs Theory, 10hrs

Practical

Module Specification: Theoretical Content

General Objective: 1.0 KNOW THE FUNCTIONS AND METHODS OF CARE OF FINISHING TOOL

AND EQUIPMENT.

Week Specific Learning Objective: Teachers Activities: Learning

Resources:

On completion of this module, the trainee should be able to: 1.1 Identify, sketch and describe common finishing tools and equipment in the trade NOTE: Examples of tools, and equipment should include: plastering trowel, pointing trowel, gauge rod, Frenchman, tyrolean machine, terrazzo machine, masonry title cutter, polishing machine.

• List common finishing tools and equipment. • plastering trowel • pointing trowel • gauge rod • Frenchman • Terrazzo machine et.

• Lesson plan. • Tools and equipment • Charts • Pictures

1.2 State the functions of each equipment and tool in 1.1 and precautions to be observed in their use.

• Describe the functions of each tool or equipment..

1

1.3 Carry out routine care and maintenance of tools in use.

• Carry out routine care of tools and maintenance of tools in use

General Objective: 2.0 STATE THE CHARACTERISTICS AND APPLICATION OF VARIOUS FINISHING MATERIALS

Week Specific Learning Objective: Teachers Activities: Learning Resources:

2

2.1 Describe the various types of finishing materials in the trade taking into account their characteristics, forms of supply, methods of care and maintenance and uses. Examples may include

a. insitu concrete floorings; terrazzo and granolithic concrete. b. Clay and precast finishes: bricks, ceramic tiles, mosaic tiles concrete slabs, terrazzo tiles; c. Stone floorings: marbles and granite d. Other tiles: linoleum, thermoplastic and vinyl tiles. e. Care and maintenance of these materials.

• Name different types of finishing materials and • State methods of care and maintenance e.g. • insitu concrete flooring terrazzo and granolithic concrete, • clay and precast finishes, bricks, ceramic tiles, etc. • stone flooring, marble and granite • linoleum, thermoplastic, vinyl tiles.

• Lesson plan • Charts • Pictures • Insitu concrete flooring • Terrazzo • Granolithic concrete, clay • Bricks • Ceramic tiles • Mosaic tiles

105



2hrs Theory, 10hrs

Practical


General Objective 3.0: Understand the principles and techniques of application of insitu floor finishes

and be able to lay specified insitu finishes proficiently


Resources:

3.1 Name different types of insitu floor finishes e.g.

screeds, granolithic concrete and terrazzo.

• List insitu floor finishes e.g.

• screeds

• granolithic concrete

• terrazzo

• Lesson plan

• Charts,

• Pictures

3.2 Estimate the quantity of insitu finishing materials

from given drawings and specifications

• Calculate the amount of

insitu finishing materials from

a given drawing and

specification

3.3 distinguish between the following methods of

having insitu floor finishes and explain their uses.

a. monolithic

b. bonded

c. unbonded

• Show the difference

between

• monolithic

• bonded

• unbonded, and

• describe their uses

3.8 Explain the causes of and state the precautions

to be taken against the following defects in insitu

floor finishes (screed, terrazzo, grano).

a. laitance

b. lifting

c. cracking and crazing

d. dusting

• Tabulate the causes and

precautions taken to prevent

defects in insitu finishes

• Laitance

• Lifting

• Cracking and crazing

• Dusting

3

3.9 State the functions of floor screed and specify

suitable screed thickness for the following bonding

methods

a. monolithic

b. unbonded

c. bonded

• State the thickness of

• monolithic

• unbonded

• bonded

106

3.6 Specify the qualities of sand for floor screeds

and state the use of various recommended screed

mixes, e.g. 1:3, 1:1½, 1:4; 1:2, etc.

• State the qualities of sand

for floor screeds

• State the use of various

mixes in floor screed; 1:3,

1:1½; 1:4; 1:2; etc

3.7 Specify the properties of base suitable for laying

screed, terrazzo and granolithic concrete.

• Describe the properties

suitable for laying screed.

e.g. terrazzo and granolithic

concrete.

3.8 Outline the procedures and precautions to be

taken in mixing, laying, compacting, curing and

protecting insitu floor finishes (screeds, terrazzo and

granolithic concrete).

• List the procedures and

precautions taken in mixing

• laying

• compacting

• curing and protecting insitu

floor finishes

3.9 Specify qualities of aggregates, mix proportions

and thickness of granolithic and terrazzo floors for

specified situation.

• State the qualities of

aggregates, mix proportion,

thickness of granolithic and

terrazzo floors.

107



2hrs Theory, 10hrs

Practical


General Objective 4.0: Understand the principles and techniques of laying precast floor finishes to

specification


Resources:

4.1 Specify the properties of backgrounds suitable

for laying the following precast materials

a. bricks

b. ceramic/clay tiles

c. concrete slabs

d. terrazzo slabs

e. mosaic tiles

• Present samples of the

various precast floor units for

students to identify

• Lesson notes

• Sample of the

following precast

floor units

• Bricks

• Ceramics

• Concrete slabs

terrazzo slabs

• Mosaic tiles

• Mortar, Water

• Cleaning

rag/foam

4.2 Describe the procedures and precautions to be

taken in laying the materials in 4.1

4.3 Specify the mix and quality of the bedding

mortar for each of the materials in 4.1

• Specify the mix and the

quality of the bedding mortar

for each of the various pre-

cast floor units

4.4 Describe methods of laying floor tiles: solid

bedding and separating layer methods and state

their relative advantages

• Visit a medium sized

construction site to observe

the procedure of laying pre-

cast floor units

4 & 5

4.5 Name common laying defects in pre-cast

floorings (and explain their causes. Examples of

defects may include: lifting, uneven surface,

misalignment of tile units, cracking, etc).

108



2hrs Theory, 10hrs

Practical


General Objective 5.0: UNDERSTAND THE PRINCIPLES AND TECHNIQUES OF LAYING

SYNTHETIC FLOOR TILES AND BE ABLE TO LAY THE MATERIAL TO SPECIFICATION


Resources:

5.1 Identify common synthetic floor tiles, state their

standard sizes, and describe methods of application

and maintenance.

• Present the common floor

tiles and let students

identifies them

• Thermoplastic

tiles

• Vinyl asbestos

tile

• P.V.C. tiles

• Adhesives

• Cutting

knife/edge

5.2 Estimate from working drawing the quantity of

tile units required for a specified floor area.

• Estimate from working

drawing the quantity of tile

units required for a specified

floor area

•

5.3 Specify the properties of background suitable for

laying the above tiles.

• Emphasis the properties of

background suitable for

laying the various floor tiles

•

6

5.4 Explain the cause and state precautions against

defects in PVC tiling

109



2hrs Theory, 10hrs

Practical


General Objective 6.0: UNDERSTAND THE PRINCIPLES, ORGANIZATION AND EXECUTION OF

EXTERNAL AND INTERNAL RENDERING


Resources:

6.1 Define rendering and state its function • Emphasis the qualities of a

good rendering mix

• Sandcreed and

laterite block work

• Brickwork

• Concrete (dense,

light weight, no

fine)

• Scaffolds

• Tie rod or wood

string Line

Admixtures

• Water

• Protective

clothing

6.2 Specify the qualities of a good rendering mix and

explain the function of lime and other admixtures in

the mix

• Prepare rendering mix to

specification

7-8

6.3 Describe the following types of renderings taking

into consideration materials used, based

preparation, mix ratios, methods of application and

curing:

a. smooth rendering

b. rough cast

c. pebble dash, etc.

• Describe method of

applying rendering mix.

110

6.4 Explain the problems associated with rendering

of the following backgrounds and state possible

remedies:

a. sand-crete and laterite blockwork

b. brickwork

c. concrete (dense, light weight, no-

fines)

• Establish levels using tie

rod or wood strips

d. set up necessary support

platforms (scaffolds)

e. clean, key and wet slabs soffit as

necessary

NOTE: Keys may be provided by hawking, spatter

dash or chiseling; establish level using tie rod or

wood strips prepare mix to specification render to

level and float to finish using wood and steel float;

6.5 Organise and execute rendering operations

involving the application of pebble-dash finish,

textured and ornamental finishes

111



2hrs Theory, 10hrs

Practical


General Objective 7.0: UNDERSTAND THE PRINCIPLES AND TECHNIQUES OF FIXING VARIOUS

WALLS AND CEILING TILES AND BE ABLE TO FIX THE MATERIALS TO SPECIFICATIONS


Resources:

7.1 Outlines the procedures and precautions to be

taken in fixing wall tiles/mosaics by

a. cement mortar method

b. adhesive method

• Emphasis safety or healthy

behaviours.

• List out the procedures for

fixing wall tiles.

• Working

drawings

• Given data

• Cement mortar,

Adhesives

• Tiles

• Cement powder

• Sand

• Mosaics

• Protective

clothing

7.2 Estimate the quantity of wall tiles required for a

specified wall area using working drawings or given

data.

• Organise and execute the

filing operations with the

active

• Estimate the quantity of

wall tiles required for a

specified wall area using

working drawings or given

data

• Participation of students

7.3 Specify the properties of background suitable for

fixing tiles by the methods in 7.1

9 - 10

7.4 Specify the quality of sand and mix ratios for

bedding and jointing mortar.

112


Module: CBC 15 WALL, FLOOR/CEILING FINISHING Module Code: CBC 15 Contact Hours: 2hrs Theory, 10hrs Practical


General Objective 8.0: UNDERSTAND THE METHOD OF FIXING AND BE ABLE TO FIX CLADDINGS TO SPECIFICATION UNDER SUPERVISION


8.1 Define the term “cladding” and explain its use • Present the various types of cramps

• Cramps • Granite • Marble • Slate • Plastics • Concrete • Brick • Mortar • Protective clothing.

8.2 Identify and state the use of various types of cramps and fixing used in securing claddings to structure e.g. channel cramps, dowel cramp, fish-tail cramp and dowel, corbel plate, rod cramps and hooks, etc.

8.3 Name types of materials used in cladding, state the recommended slab sizes and illustrate methods of fixing them. E.g. granite, marble, slate, plastics, concrete, brick etc.

• Present the various materials used in cladding e.g. granite, plastics, marble etc.

8.4 Explain the purpose of expansion joint in claddings and describe a method of forming it.

8.5 Outline the operational and safety precautions to be observed when fixing claddings.

• Organise and execute under supervision the various operations in fixing cladding • Emphasis safety habits in handing claddings. • Illustrate the various methods of fixing cladding

8.6 specify mortar for fixing stone, concrete and granite claddings

• Specify and prepare mortar for fixing the various claddings.

8.7 Explain the need for protection after fixing claddings

11

8.8 Describe methods of storing and handling claddings on site.

113




General Objective 9.0: UNDERSTAND THE PRINCIPLES AND BE ABLE TO APPLY PREMIXED RENDERINGS


9.1 Describe the composition of tyrolean and state the properties of the base suitable for its application.

• Present samples of tyrolean and sandtex to the students

• Tyrolean • Sandtex, Water

9.2 describe the method of application and cunning tyrolean

9.3 Estimate the quantity of tyrolean required for a specified job

• Estimate the quantity of tyrolean required for a specified job.

9.4 Execute the following operations in the application of tyrolean;

a. clean and wet wall surface b. prepare tyrolean to makers’ specification c. spray tyrolean evenly onto wall using tyrolean gun d. cure tyrolean by wetting

• Demonstrate the application of tyrolean. • Prepare the tyrolean to makers specification

9.5 Explain causes of failure in tyrolean finish, examples of failure may include, Peeling, discolouration, cracking and crazing, etc.

9.6 Describe the basic composition of “santex” finish and distinguish between “santex matt” and “santex trowel” in terms of finished texture and methods of application.

9.7 Estimate the quantity of santex finish required in a given situation.

• Estimate the quantity of sandtex finish required in a given situation and demonstrate its application

9.8 Describe the properties of base suitable for the application of “sandtex” finishes.

12

9.9 Apply sandtex-trowel and sandtex-matt according to the marker’s instruction.

13 Examinations: Practical – 60% Theory – 40%

114

NATIONAL TECHNICAL CERTIFICATE IN BLOCKLAYING, BRICKLAYING AND CONCRETING

MODULE: WALL, FLOOR/CEILING FINISHING MODULE CODE: 15 CONTRACT HOURS:

10HRS

PRACTICAL/WK

MODULE SPECIFICATION: PRACTICAL CONTENT

GENERAL OBJECTIVE: 1.0 USE AND MAINTAIN FINISHING TOOLD AND EQUIPMENT

WEEK SPECIFIC LEARNING OUTCOME TEACHERS

ACTIVITIES

LEARNING

RESOURCES

1 - 2

1.1 Identify and use common finishing tools and

equipment in the trade.

Note: Example of tools, and

equipment should include:

Plastering trowel, pointing trowel,

gauge rod, Frenchman, Tyrolean

machine terrazzo machine, masonry

title cutter, polishing machine

• Guide students to

perform operation with

finishing tools.

• Tools and

equipment

3 - 4

1.2 Organise and execute the following floor

screeding operations:

1.3 Clean and wet floor area to be screeded

1.4 Mix screed to specification

1.5 Establish screed levels (profile) at intervals over

floor area

1.6 Screed to level and float to finsh using wood and

steel float

1.7 Cure screed by damping

• Guide students to carry

out floor screeding

operations

• Clean and wet floor

area

115




General Objective: 2.0 Specify qualitites of aggregates, mix proportions and thickness of granolithic

and terrazzor floors for specified situation.


ACTIVITIES

LEARNING

RESOURCES

2.1 Organise and execute the following

terrazzo/granolithic laying operations:

2.2 Clean floor area

2.3 Mark out bays/patterns to specification

2.4 Mix mortar for fixing dividing strips

2.5 Fix dividing strips as marked out

2.6Mix terrazzo or grano to specification

2.7 Wet and grout bays to receive mix

2.8 Fill bays alternately with mix, compact to level

using rollers or rammer and/or trowel.

2.9 Wash off after a minimum damp-curing period of

96 hours

2.10 Apply dust proofing agent (proprietary

hardener) – terrazzo aid, and wash off thoroughly

ready for polishing

2.11 Apply terrazzo polishing machine and polish

floor successively with coarse and fine abrasive

stone.

• Guide students to

perform given task

• Give clear

specifications for

students to follow.

• Guide the students to

carry out the operations

following correct

procedures.

General Objective 3.0: Understand how to lay pre-cast floor


ACTIVITIES

LEARNING

RESOURCES

5 - 6

3.1 Organise and execute pre-cast floor tiling

operations below:

3.2 Solid bedding operation

3.3 Soak and drain tile units

3.4 Clean floor and establish floor centre

3.5 Mix bedding mortar to specifications

3.6 Apply bedding screed to bed and level off

3.7 Bed tile units to level from centre outwards and

clean off mortar splashes.

116




General Objective 4.0: Know how to lay synthetic floor tiles to specification

WEEK SPECIFIC LEARNING OUTCOME TEACHERS ACTIVITIES

LEARNING RESOURCES

7 - 8

4.1 Organize and execute the following operations in the application of synthetic floor tiles. 4.2 Clean and dry floor as necessary 4.3 Establish floor centre using lines and marker 4.4 Apply adhesive according to marker’s instruction at center, and bond “reference” title 4.5 Apply adhesive on remaining part of floor and bond tiles from “reference” outwards 4.6 Clean off any adhesive splashes 4.7 Protect from immediate use

General Objective 5.0: Perform and executive external and internal rendering work

WEEK SPECIFIC LEARNING OUTCOME TEACHERS ACTIVITIES

LEARNING RESOURCES

5.1 Organise and execute the following operations in smooth (floated finish) rendering 5.2 Set up necessary support platforms (scaffolds) 5.3 Clean, wet and key wall surface, as necessary to receive mix 5.4 Establish levels using tie rod or wood strips 5.5 Prepare rendering mix to specifications 5.6 Render to level and float to finish from upper level downwards Curve by wetting

• Guide students to carry out all the activities after the teachers’ demonstration

5.7 Set up necessary support platform (scaffolds) 5.8 Clean, key and wet slabs soffits as necessary

Note: Key may be provided by hawking, spatter dash or chiseling.

5.9 Establish level using tie rod or wood strips 5.10 Prepare mix to specification 5.11 Render to level and float to finish using wood and steel float

5.12 Organise and execute rendering operations involving the application of pebble-dash finish, textured and ornamental finishes

117




General Objective: 6.0 Know how to fix various walls and ceiling tiles to specifications


ACTIVITIES

LEARNING

RESOURCES

9 - 10

6.1 Organise and execute the following wall tiling

operations

6.2 fix batten at width of one tile course above the

concrete floor screed and level

6.3 soak and drain tiles in readiness for fixing

6.4 clean, wet and provide keys in the wall, where

necessary for tile fixing

6.5 prepare bonding mortar to specification “buter”

tiles with mortar, tap in security to wall from atten

upwads keeping joints less than 2mm wide, and

plumb to finish fill in joints with cement grout and

clean off.

• Guide the students on

execution of the

specified project

• Tools and

equipment

General Objective: 7.0 Know how to fix claddings to specification


ACTIVITIES

LEARNING

RESOURCES

11 -

12

7.1 Organise and execute under supervision the

following operations in cladding fixing.

7.2 Prepare fixing mortar to specification

7.3 Fix accurately specified cramps or other fixings

(dowels)

7.4 Hand claddings on fixings making room for

expansion joints, fill in joints with mortar and clean

off

7.5 Construct expansion and compression joints in

accordance with the designer’s requirement.

118




General Objective: 8.0 Apply premixed renderings


ACTIVITIES

LEARNING

RESOURCES

13 8.1 Apply santext-trowel and santex-matt according

to the marker’s instruction

Examination: Practical 60%, Theory 40%

119

Advanced National Technical Certificate Courses

Building Science I

PROGRAMME: ADVANCED NATIONAL TECHNICAL CERTIFICATE IN BLOCKLAYING ETC

MODULE: BUILDING SCIENCE – I Module Code: CBC – 20 Contact Hours:

3hrs Theory

Course Specification: THEORETICAL CONTENT

General Objective: 1.0: Understand The Basic Principles Of Thermal Movements In Building And

Building Materials.

Week Specific Learning Outcome: Teachers Activities Resources

1-7

1.1 Define the following terms: a. thermal conductivity b. thermal resistively c. heat transmittance coefficient or “U” value. d. Thermal emissivity e. Thermal absorptivity.

1.2 State the factors which determine the magnitude of the above terms for a structural unit or building materials. 1.3 Explain the variation of the amount of heat transmitted between the surface of a slab of building material of uniform thickness and composition.

• Compute the ‘u’ and ‘k’ values for structural units or building materials from given data. • Student to define and explain all the thermal terms.

• ’U’ and ‘u’ values for structural units.

General Objective 2.0: Know The General Principles Of Sound Transmission And Control.


3 – 4

2.1 Explain the general principles of sound transmission. 2.2 Explain the following terms.

a. air born sound b. structure-born sound c. sound reflection, reverbration and reveration time. d. Impact sound

2.3 Explain the general principles and methods of sound control.

• Measure sound transmission level (intensity) in decibels. • By visiting an acoustic building describe the general principles and methods of sound control (Insulation and absorption) in buildings e.g. • Principle of discontinuity • Mass law; ound reduction at source, etc.

• Sound measuring instruments • Sound producing source. • A coustic building

120



3hrs Theory


General Objective 3.0: Understand The Basic Principles Of Lighting


5-6

3.1 State the general functions of lighting.

3.2 Define the following terms:

a. illumination

b. luminous flex

c. illuminance

d. luminance

e. day light factor

3.3 Distinguish between disability glare and

discomfort glare.

3.4 State ways by which glare is controlled in

buildings.

• Explain the general functions of

lighting e.g

• To illuminate the internal envolope

and contents;

• To illuminate task (reading,

working with equipment etc). to the

extent appropriate to optimal

functioning of the eye.

• Emphasize the following ways of

controlling share in buildings.

• Types, sizes, number and position

of openings

• Source of light

• Hall with good

lighting system.

• Hall with bad

lighting system.

3.5 Determine the intensity of illumination

due to a given source of light.

3.6 Calculation of day light factor.

3.7 Describer the main classes of lighting.

3.8 State the uses of the main classes of

lighting.

3.9 Explain the interdependence of color and

lighting in buildings.

• Colour and texture of building

surfaces.

• Types of lighting fittings

• Structure of internal envelope etc.

Calculate day-light factor from

given date and buy direct

measurement.

• Emphasize the following classes

of lighting.

• Direct lighting

• Indirect lighting

• General lighting

• Luminous lighting

• Data for

calculating day-light

factor

• Instrument for


factor by direct

measurement.

121



3hrs Theory


General Objective 4.0: Understand The Principles Of Electricity Supply In Buildings


7-8

4.1 State the difference between alternating

current and direct current.

4.2 Explain the construction and working

principles of generators, motors and

transformers.

4.3 Explain with the aid of experiments the

heating, lighting, magnetic and chemical

effects of electric current.

4.4 Calculate the power and energy

consumption in simple circuits.

4.5 Explain the function of earning in

electrical circuits.

4.6 State the purpose and explain the

functioning of circuit breakers and fuses.

4.7 Illustrate the correct method of

distributing electrical power from the mains

to socket outlets and lighting points in house

wiring systems.

4.8 Compute total electrical load for a given

load of a given house wiring.

4.9 Calculate fuse capacity for house wiring

system.

Identify dangers of electricity and essential

safety measures against them.

• Carry out experiments to

demonstrate the heating, lighting,

magnetic, and chemical effects of

electric current.

• Mathematical calculation of power

and energy consumption in simple

circuit.

• Identify earthing in an electrical

circuits. E.g in a bungalow.

• Identify circuit breakers and fuses

in a building.

• Exphasize the correct method of

distributing electrical power from

the mains (NEPA line or stand by

generator) to socket outlets and

lighting points in house wiring

systems.

• Interpret electrical installation

drawings of a small bungalow or

two storey building.

• Emphasis the dangers of

electricity and enumerate the

essential/necessary safety

measures against them.

• Simple electric

circuits

• Electric heater

• Electric busy

• Solenoid

• circuit breakers

• fuses

• NEPA line

• Generator

• Bungalow with

complete wiring

system

• Electrical

installation.

• Drawing of a

small project i.e.

the bungalow.

122



3hrs Theory


General Objective 5.0: Know The Basic Principles Of Plant Installation In Buildings.:


9-10

5.1 Explain the working principles of lift and

escalators.

5.2 Outline safety, principles for lifts and

escalators.

5.3 Explain the general principles of air-

conditioning.

• Visit a building with escalators

and or lift.

• Emphasize maintenance

principles for lifts and escalators.

• Escalators

• Air conditioners

5.4 Describe various mechanical methods of

ventilation.

5.5 Explain the principle of mechanical

ventilation.

Outline the general installation requirements

for central and room air conditioning

equipment in dressings.

5.7 Define the following:

a. relative humidity

b. dew point

5.8 Explain the occurrence of condensation

in buildings.

5.9 Describe methods of control of

condensation.

• Illustrate the application of

turbulent and non turbulent flow in

domestic water supply and

drainage

• Determine experiments the rate of

flow from an orifice.

• Calculate the velocity of flow of

water from given date

• Calculate pipe sizes for drains or

water supply from given date.

• Experimentally explain the

general principles of installation of

cold and hot water supply systems

having water pumps.

• Orifice

• water containers

• water

• data for

calculating velocity

of flow of water.

5.10 Explain the principle of turbulent and non-turbulent flow. 5.11 Explain the followings terms and state their importance in the design and installation of piped above water supply system:

a. static head of water b. velocity head c. friction head d. pressure head e. water hammer f. coefficient of velocity g. coefficient of discharge.

123


MODULE: BUILDING SCIENCE – I Module Code: CBC – 20 Contact Hours: 3hrs Theory


General Objective 6.0: Analyse Forces In Simple Building Structures And Structural Frame Work.


11-12

6.1 State the laws of static equilibrium. 6.2 Explain with illustrative examples the laws of static equilibrium e.g. (V) = 0 6.3 Determine the magnitude and position of the resultant of a simple system of coplanar forces in. 6.4 Analyse forces in simple pin-jointed frame work.

• Determine the magnitude and position of the resultant of a simple system of coplanar forces by: - graphical method. • Method of resolution experiment. • Experiment. • Analyse forces in simple pin-jointed frame-work • by method of resolution of force diagram method • method of section

• Charts • Model of simple pin-jointed frame work.

6.5 Identify common loading systems for various building structures 6.6 Determine beam reaction, shear force and bending moments in simply supported beams under various loading systems using.

a. Link polygon system b. method of resolution experiments.

6.7 Define the following properties of structural sections. centre of gravity, moments of inertia, radius of inertia, radius of gyration section modules

• Emphasize the following common loading systems concentrated load on beams, strandion and nodes in frame-works. • Knife –edge load on partitions or walls. • Uniformly distributed load such as self-weight wind load,. • Distributed load with linear variation such as loads against pilling retaining walls triangular load such as block-work over opening. • Calculate beam reactions under various loads.

• Model • beam • sections

6.8 State the general theory of simple bending i.e.

• Determine he value of the following for a given section. • Centre of gravity • Moments of inertia • Radius of gyration • Section modules • Determine maximum bending stress and moment of resistance of beam sections.

13 Examinations = 100% Theory

124

Building Science II

PROGRAMME: ADVANCED NATIONAL TECHNICAL CERTIFICATE IN CARPENTRY AND JOINERY.

MODULE: BUILDING SCIENCE II MODULE CODE: CBC 21 Contact Hours:

3hrs theory & 1

Hr. practical

MODULE Specification: THEORETICAL CONTENT

General Objective 1.0: Know The General Process Of Manufacture, Properties And Uses Of Different

Types Of Cement.

Week Specific Learning Outcome: Teacher Activities Resources

1

1.1 Outline the manufacturing process, basic

composition properties and uses of the following types

of cement:

a. ordinary Portland cement

b. rapid hardening Portland

c. extra rapid hardening Portland

d. low heat Portland cement

e. blast-furnace Portland cement

f. super-supplanted cement

g. high alumina-cement

h. colored Portland cement

i. hydrophobic cement

j. pozzolana –cement

• Describe the manufacturing

process of cement.

• Name the different types of

cement and explain uses

and areas of application.

• Chalk board.

• Lesson note.

• Specimen of

cement of

different types.

1.2 State factors which influence setting time, strength

and hardness of ordinary Portland cement.

1.3 Describe the test procedure and carry out

standard tests to determine:

a. strength

b. soundness

c. setting time

d. hardness; of ordinary Portland

cement.

1.4 State and justify the essential precautions in the

storage and use of cements in 1.1 above.

• Explain the main features

of each type of cement.

• Explain the factors that

influence the setting time,

strength and hardness of

Portland cement.

• Lesson note.

• Cement

specimens.

• Chalk board.

125



3hrs theory & 1

Hr. practical


General Objective 2.0: Know The Manufacture, Properties And Uses Of Lime And Gypsum Plasters.


2

2.1 Explain the differences in the manufacture and

composition of lime and gypsum plasters.

2.2 State the classifications and uses of lime and

gypsum plasters.

2.3 Describe the method of application of lime and

gypsum and state essential precautions.

• Define: “Lime”; “ Gypsum”

and explain their uses in

building construction

processes.

• Discuss the manufacturing,

properties, and uses of lime

and gypsum.

• Explain the methods of

application of the materials.

• Lesson note

• Chalk board

Posters

• Specimen of

lime and

gypsum.

General Objective: 3.0 Carry Out Sound Tests To Determine The Quality Of Aggregates.


3

3.1 Describe procedures of sieve analysis and

determine aggregate grading by sieve analysis.


laboratory tests to determine silt contact of given

sample of aggregates.

3.3 Describe the test procedure and carry out the test

to determine the crushing values of a given sample of

aggregate.

3.4 Describe the test procedure and carry out bulking

test.

• Define “aggregate”

• Explain methods of grading

of aggregates

• Conduct silt contact,

crushing value and bulking

tests and guide the students

to perform similar tests.

• Aggregates

• Lesson notes

• Posters

• Samples of

Aggregates

126



3hrs theory & 1

Hr. practical


General Objective: 4.0: Know Different Types Of Mortar And Their Application.


4

4.1 Outline the general desirable properties of mortar

e,g. good workability and water retentivity, adequate

cohesion and adhesion, strength, durability, tolerable

shrinkage, etc.

4.2 Name different types of mortar, their properties,

typical mix proportions to be taken in the proportioning

and mixing of mortar.

4.3 Explain the precautions to be taken in the

proportioning and mixing of mortar.

• Define “Mortar”

• State the properties of

mortar and typical mix

proportion.

• Mortar

• Lesson notes

• Charts

4.4 State the basic considerations in the choice of

mortar e.g weather characteristics, appearance, type

of job, etc.

4.5 Describe the procedure and carry out an

experiment to determine the air content of plasticised

mortar.

• Demonstrate the

procedures for determining

air content of plasticised

mortar.

• Mortar.

• Lesson notes.

• Posters.

General Objective 5.0: Know The Process Of Manufacture, Properties And Uses Of Different Clay

Products.


5

5.1 Name and state the properties and uses of

different clay products in the building industry.

e.g. clay-bricks (engineering bricks, facing bricks,

common bricks, and specials), clay blocks, clay

roofing tiles, clay floor tiles and quarries, vitrified clay

pipes, etc.

5.2 Outline the process of manufacturing of the

products in 5.1 above.

5.3 Determine hardness, compressive strength,

porosity and permeability of given sample of bricks by

laboratory methods.

• Define “Clay” and State the

properties of clay.

• Discuss the process of

manufacturing clay bricks

blocks, tiles etc.

• Demonstrate how to

determine hardness,

compressive, strength

porosity and permeability

test of bricks.

• Clay.

• Clay Products.

• Lesson note.

• Chalkboard.

• Clay bricks.

• Test

Instruments.

127



3hrs theory & 1

Hr. practical


General Objective 6.0: Know Different Types Of Building Rocks Their Sources And Uses.


6

6.1 Classify natural rocks, igneous, sedimentary and

metamorphic rocks.

6.2 Describe the characteristics and uses of different

types of rocks of commercial value in the construction

under the classification in 6.1 above.

6.3 Describe the sources of rocks in 6.2 and their

quarrying methods. e.g., igneous rocks, sedimentary

rocks, metamorphic rocks, granites, sands, limestone,

marble, slate.

• Show samples of building

stones and explain their

characteristics.

• Name sources of building

stone.

• Lesson note.

• Posters.

• Chalkboard.

General Objective 7.0: Understand The Production And Use Of Concrete As Structural Material


7

7.1 Outline the desirable qualities of the ingredients of

mass and reinforced concrete.

7.2 Explain the effects of aggregate grading, water

cement ratio compaction and curing on the

compressive strength of concrete.

7.3 Describe methods of proportioning and mixing

concrete materials and placing compacting, curing

and protecting green concrete.

• Define concrete and

describe the composition of

concrete.

• Concrete.

• Aggregates.

• Lesson note

concrete cube.

• Equipment.

7.4 Carry out slump and cube test and interpret

results.

7.5 Carry out permeability test on given sample of

concrete.

7.6 Estate from project drawings the quantities of

concrete materials required for the execution of the

project.

7.7 Compute the quantities of batch materials from

prescribed or designed mix.

7.8 Explain the general principles in the reinforcement

of beams, columns, floor slabs, walls, retaining walls,

concrete tanks, can designed mix.

• Guide students to carry out

slum test and permeability

tests on given sample of

concrete.

- do -

128



3hrs theory & 1

Hr. practical


General Objective 8.0: Know The Characteristics, Methods Of Conversion And Uses Of Different

Types Of Timber In The Building Industry.


8

8.1 Classify timber as hard-wood and soft-wood and

state the distinguishing characteristics.

8.2 Describe the structure of timber and state the

functions of the parts.

8.3 Describe different methods of timber conversion

and state the merits of each method.

8.4 Explain the purpose of seasoning, timber and

describe various methods of seasoning and

preserving timber,

8.5 Identify nature of defects in timber and explain

their causes.

8.6 Identify various causes of deterioration in

converted timber and state necessary precautions.

8.7 Explain the BS system of grading timber.

8.8 Identify various type of manufactured boards and

sheet and explain their characteristics and uses.

8.9 Carry out cleavage test, static bending test and

hardness test on given specimen of timber.

• Explain the sources of

timber in Nigeria.

• Discuss the uses of timber

in the building industry.

• Explain the structure of

timber.

• Explain the process of

timber production up to point

of use.

• Explain the causes of

timber deterioration and how

these could be controlled.

• Lesson note.

• Specimens of

different types of

timber.

• Chart.

General Objective 9.0: Understand The Characteristics Various Metals Used In The Building Industry.


9

9.1 Identify various metals used as structural

components in building and state their mechanical

properties. E.g. brass, aluminimum, mild steel,

galvanized iron, copper, lead, stainless steel, wrought

iron, cast iron, medium carbon steel.

9.2 Explain the process of corrosion of the metals in

9.1 above and describe the necessary preventive

measures.

• List the various kinds of

metal – ferrous and non-

ferrous metals.

• Define corrosion and

explain its process and effect

on matal.

• Samples of

metals.

• Lesson note.

• Charts.

129



3hrs theory & 1

Hr. practical


General Objective: 10.0: Know The Properties And Application Of Various Types Of Paints And

Varnishes


10

10.1 Describe the basic constituents of paints.

10.2 Name types of paints and explain their

composition, properties and uses.

10.3 Explain the functions of primer, under-coat and

finishing paints.

10.4 Identity paint schemes for various building

surfaces: e.g. wood, block-work, brick-work, steel, etc.

10.5 Estimate quantity of paint required for a given

house painting job.

10.6 Carry out experiments to determine spreading

power, drying times and permeability of a paint

sample.

10.7 Carry out experiment to demonstrate the effect of

alkali on a given sample of oil paint.

10.8 Explain the occurrence of defects in painting and

state the necessary precautions.

10.9 Explain the need for surface preparation before

painting.

• Define “Vanish” and “Paint”

• Explain the basic

components of paints

• Use question and answer

technique to explain the

functions of primer and

under-coat.

- do -

• Specimens of

Vanish and

Paints.

• Lesson note.

General Objective 11.0: Understand The Manufacture, Properties And Uses of Plastics In Building.


11

11.1 Explain the basic chemical process of

manufacture of plastics.

11.2 Distinguish between thermoplastics and

thermosetting plastics.

11.3 Name different types of plastics in use in the

building industry, describe their characteristics and

uses. e.g. PVC, PVA, Polystyrene, silicones, etc.

• Define “Plastic”.

• Explain the use of plastic

materials in the construction

industry.

• Specimen of

plastic materials.

• Lesson note.

Chalk board.

130



3hrs theory & 1

Hr. practical


General Objective 12.0: Understand The Properties And Uses Of Adhesives In The Building Industry.


12

12.1 Name different types of adhesives in the building

industry, describe their characteristics and uses. E.g.

animal glue, casein glue, amino-resins, epoxy resin,

etc.

12.2 Explain the action of adhesives and the need for

surface preparation before application.

12.3 Explain factors to be considered in the selection

of adhesive for use.

12.4 Explain with illustrative examples, the use of

sealants and mastics in the building industry.


standard test to determine the dry and wet strengths

of given specimen of adhesive.

• Define “Adhesive”.

• Explain the use and

importance of adhesives in

construction work.

• Give notes for students to

copy.

- do -

• Samples of

adhesives

• Lesson note.

• Chalk board.

- do -

13 Examinations: Practical = 60% Theory = 40%

131

Basic Construction Management II

PROGRAMME: ADVANCED NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING

AND CONCRETING.


MANAGEMENT II

Module Code: CBM 21 Contact Hours: 72

Course Specification: Practical Content

General Objective: 1.0 UNDERSTAND THE BASIC PRINCIPLES ORGANISATION AND

MANAGEMENT.

WEEK

TERM

1

Specific Learning Outcome: Teachers Activities Resources

1 - 2

BUSINESS UNITS

1.1 Explain the meaning of the

term ‘company’.

1.2 Distinguish between private

and public company.

1.3 Outline the principles of

organisation and management of

the following business units:

a. Sole

proprietorship

b. Partnership

c. Limited liability

Company.

• A visit to the various business

units to observe the

distinguishing features.

• Certificate of registration of

companies

1.4 Explain the legal meaning and advantages of:

a. Limited liability b. Incorporation in reference to formation of a company.

1.5 Define the term fixed and working various ways in which construction firm may raise capital. 1.6 Distinguish between fixed and working capital. 1.7 Describe various ways in which construction firm may raise capital.

132


AND CONCRETING.


MANAGEMENT II



General Objective: 1.0 UNDERSTAND THE BASIC PRINCIPLES ORGANISATION AND

MANAGEMENT.

WEEK

TERM

1


1.8 Describe the various

organisation structures e.g.

- line

- line and staff

- function staff

- matrix

1.9 Explain the application of

organisational structures in the

construction Industry.

• Illustrate the basic features of

the organisation Structures by

means of organisational chart.

• Organisation charts

1.10 Analyse the characteristics of

organisation cultures and explain

the degree to which they feature in

the management of construction

firms.

1.11 State the importance of clearly

defined policies in an organisation

construction.

• Draw the orgnisation chart of a

typical medium size construction

firm and describe the span of

control and pattern of

communication.

• Identify the main area of a

construction firm activities within

which policy issues should be

clarified by management.

• Organisation Charts

133


AND CONCRETING.


MANAGEMENT II



General Objective 2.0: CONTRACTUAL RELATIONSHIP & TENDERING ARRANGEMENTS.

WEEK

TERM

1


3 – 4

2.1 Explain the legal meaning of

the term ‘contract’.

2.2 State the basic elements of a

valid contract e.g offer,

acceptance, consideration.

2.3 List and explain the various

forms of general remedies

available in the law courts for a

breach of contract.

- damages, order

of payment of debt,

specific

performance

- Injunction

- Rescission

• Identify and explain the basic

features of the followings classes

of contract.

• Speciality or sealed contract.

• Simple contract.

2.4 Name and explain the various

types of contracts in the

construction industry.

2.5 Explain the nature and uses of

the following contract documents.

- articles of

agreement

- conditions of

contract

- specification

- bill of quantities

- contract drawings

• Explain the basic features of

the following types of contracts:

a. negotiated

contracts (cost

plus target cost),

lump sum,

schedule

contracts, serial

contracting etc.

b. package deals

c. labour

contracts

• Present to learners a

standard contract documents

and let learners internalise

with the documents.

134


AND CONCRETING.


MANAGEMENT II



General Objective 2.0: CONTRACTUAL RELATIONSHIP & TENDERING ARRANGEMENTS.

WEEK

TERM

1


2.6 List the following parties

involved in the building contracts

i.e.

- Employer or

client

- Arch

- Engineer

(structural and

service)

- Quantity surveyor

- Contractor

- Sub-contractors

- Suppliers

- Agent and

foreman

- Clerks of works

• Explain the roles and

responsibilities of the various

parties involved in the building

contracts.

• A visit to a standard

construction site where all the

parties involved in the

building contract can be

identified.

2.7 Describe the procedures for the

preparation of open and selecting

tendering.

2.8 Explain the application of open

and selective tendering

arrangements.

• Prepare an open tender

document for a light construction

project e.g.

• Garage, two/three

• Bedroom bungalow.

• An already prepared

tendering documents for the

contract treated in week six.

135


AND CONCRETING.


MANAGEMENT II



General Objective 3.0: SITE ORGANISATION AND ADMINISTRATION

WEEK

TERM

1


5 - 6

3.1 State basic consideration in the

planning of construction site.

3.2 Explain the importance of

security and safety on project.

3.3 List factors to be considered in

the planning of the site offices and

welfare facilities.

3.4 State factors to be considered

in the placing of order for materials,

equipment and plants.

3.5 Describe standard procedure

for ordering and

receiving/deliveries of materials,

equipment and plant.

• Consider, access road,

temporary roads, hutments,

stationary plant location,

materials (storage and waste

disposal).

• Draw up security and safety

plans for a typical medium –

sized construction project.

• Emphasize the importance of

the site office and welfare

facilities.

• Site office and welfare facilities.

• Plan a given construction site

for light construction project. e.g

Bungalow.

• A visit to an organised

construction site.

• Drawings/pictures of

construction sites.

• Films and slides

• Standard and essential site

records from an oganised

site.

3.6 State the functions of essential

site records.

3.7 Explain the purpose of site

meeting.

3.8 Describe the method of

organising size meeting.

3.9 State the purpose of inventory.

3.10 Describe inventory system

suitable for construction site.

• Attend on organised site

meeting on the construction site.

• Prepare an inventory system for

a light construction project e.g

Bungalow or block of flats.

• Minutes of a site meeting.

• Inventory sheet of a small

construction project.

3.11 Outline the problems that are

encountered in executing a project

in a restricted area.

3.12 Explain the solutions to the

problems encountered in executing

a project in a restricted site.

• Visit a congested site

• Observe the problems

encountered on the congested

area.

• Proper solutions to the

problems identified.

• Congested construction site.

136

PROGRAMME: ADVANCED NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING AND CONCRETING.

MODULE: BASIC CONSTRUCTION MANAGEMENT II



General Objective 4.0: UNDERSTAND APPLICATION THE BASIC TECHNIQUES OF PLANNING CONTROL OF BUILDING PROJECTS

WEEK TERM 1


7 - 9

4.1 Define planning in relation to building construction. 4.2 Describe the various aspects of pre-tender and pre-contract planning. 4.3 Describe aspects of planning during and after construction. 4.4 Explain the use of programme and progress charts network diagram (CPM). 4.5 Explain the use of line of balance as planning techniques in the construction industry.

• Prepare programme and progress • Charts for a given light construction project.

• Lesson note chalk board. • Programme and progress charts of a construction project.

4.6 Define work study. 4.7 Describe work study scope 4.8 State the objectives of work study. 4.9 Describe the basic techniques of method study e.g scale models, string diagrams, progress chart etc.4.10 State the objectives of work measurements and time study. 4.11 Describe the standard procedure for carrying outwork measurement. 4.12 Outline the general problems of work study supervisor.

• Produce the following basic techniques of method study for a light construction work e.g a bungalow.

- Scale models - String diagrams - Progress charts - Activity sampling etc.

• The various diagrams of the techniques of method study.

- The building plan - Bill of quantities - Contract drawings.

4.13 Propose solutions to problems of work study. Explain the various the various methods of cost control.

• Carry out method and time study using appropriate techniques. • Apply various methods of cost control.

• Programme and progress charts • Lesson notes • Pencil, paper and eraser.

137


AND CONCRETING.


MANAGEMENT II



General Objective 5.0: DRAFT AND INTERPRET BUILDING SPECIFICATIONS AND DETERMINE

QUANTITIES FROM PROJECT DRAWINGS.

WEEK

TERM

1


10 -12

5.1 Define ‘specification’ in relation

to building work.

5.2 Describe the general form of

specification.

5.3 Outline the essential features of

a specification.

5.4 Describe sources of

specification information.

5.5 Outline the general rules for

measurement of building works as

per standard method of

measurement of building works.

• Draft and interpret

specifications, detailing.

• Standards of workmanship,

quality of materials and tests

covering all trades and sections

as a given project drawings e.g.

a bungalow or two story building.

• Project drawings

• Specifications of various

trades

• Standard method of

measurement (SMM).

5.6 State the purpose of the bill of

quantities.

5.7 Describe steps in reparation of

bill of quantities i.e. taking off,

squaring, abstracting and billing

• Prepare bill of quantities for a

given light construction work e.g

a bungalow or two story building.

• Building drawings

• SMM

• Abstracting sheet

• Adding machine or

calculator.

13 EXAMINATIONS

138


AND CONCRETING.


MANAGEMENT II



General Objective 6.0: UNDERSTAND THE BASIC PRINCIPLES OF COSTING AND

ESTIMATING.

TERM

2

WEEK


1-3

6.1 State the principal elements of

construction contracts.

6.2 Explain the influence of the

elements on construction cost e.g.

- Materials and

plants

- Establishment

and overhead

charges and profit

- Time allowed for

work execution.

- Quality of work

expected etc.

• Carry out market survey

• Prepare an approximate

estimates for a building project

using the following methods

• Floor area method

• Unit method

• Approximate quantities etc.

• Compare the approximate

estimates devised by the various

methods.

• Price list of materials


• Bill of quantities

• Specification

tables/schedule of the various

trades.

6.3 Describe common methods of

approximate estimating e.g.

- Floor area

method

- Unit method

- Approximate

quantities methods

etc.

6.4 Describe the various sources of

information for pricing.

6.5 Identify constituents of rates in

all trades.

• Analyse and build-up ‘all in-

rates’ for a given simple project.

• Prepare builder’s quotation for

a given simple construction

contracts e.g.

• Simple bungalow.


• Sample of quotation paper

for a simple contract.

• Adding machine or

calculator.

139


AND CONCRETING.


MANAGEMENT II



General Objective 7.0: UNDERSTAND THE APPLICATION OF ORGANISATION AND USE OF

CRAFT FORCE.

TERM

2

WEEK


4 - 7

7.1 Outline the personal qualities,

the roles and responsibilities of the

craft force supervisor in the

construction industry.

7.2 Explain the influence of

leadership style on work forces

performance.

7.3 Outline basic considerations in

the recruitment and selection of

construction operatives

7.4 Describe various means of

controlling operatives.

7.5 Describe various methods of

determining the salaries and wages

of the operatives on site e.g day

work, job pricing, wage schedule

etc.

• Visit a well organised

construction the various craft

force.

• Determine hour- input by the

operatives using

a. time-clock,

b. tally board

c. time sheets in a construction

site for the various trades.

• Determine the salaries and

wages of operatives on site

using: - day work, job pricing,

wage schedules etc.

• Construction site

• Craft force

• Craft supervisor

- Time sheet

- Stop clock

- Tally board

-

Construction

site.

7.6 Explain the function of motivation and team spirit in an organisation. 7.7 Describe various means of motivating and cultivating team spirit and morals among construction craft force. 7.8 Explain Magregor’s theory X and theory Y 7.9 Solve simple case studies involving supervisory problems. 7.10 Plan suitable incentive schemes.

• Use case study method as a practical means of demonstrating Magregor’s Theory X and theory Y. • Plan suitable incentive schemes for a small construction firm. • Solve simple case studies involving. • Supervisory problems.

• Construction site • Case file of a simple supervisory problem • A supervisor from an organised construction site.

140


MODULE: BASIC CONSTRUCTION MANAGEMENT II



General Objective 8.0: UNDERSTAND THE BASIC ELEMENTS OF ACCOUNTING AND ABLE TO PREPARE AND INTERPRET TRIAL BALANCE.

TERM 2 WEEK


8 - 10

8.1 Describe the various forms of day to day transactions in a medium sized construction firm. 8.2 Describe the system of original entry into books of account. 8.3 Describe the petty cash or impress system. 8.4 Classify ledgers for different purposes. 8.5 Describe the method of maintain ledger accounts.

• Visit a medium sized construction site to observe the various books of account and how they are maintained. • Prepare a petty cash book for a simple construction work.

- books of account - petty cash or imprest book - ledgers

11-12

8.6 State the uses of trial balance. 8.7 Describe the preparation of trial balance. 8.8 State the uses of final accounts and balance sheet. 8.9 Describe the basic nature of final accounts and balance sheet. 8.10 Describe the relationship between the various accounting stages: original entry, ledger accounts, trial balance, final accounts and balance sheet.

• Solve problems involving trial balance. • Prepare a trial balance account for a simple contract job. • Prepare a final accounts and balance sheet for a simple contract job.

- The various books of account - Adding machine or calculator.

8.11 Explain the importance of efficient accounting system n a business organisation.

- Lesson notes - Specimen copy of accounting books of a medium construction firm.

13 EXAMINATION: Examination 60%; Theory 40

141


MODULE: ENGINEERING DRAWING & DESIGN MODULE CODE: CTD 21 Contact Hours:

36

Module Specification: Practical

General Objective: 1.0 Know Basic drawing Office Practice

Week Specific Learning Outcome Teachers Activities Resources

1

1.1 Identifying with the aid of organization chart

drawing office personnel, their functions and

relationship, e.g. office manager, chief draftsman,

section leader, checkers, tracers, printers, store

keepers, etc.

Teach the students to identify

basic drawing office

instruments, equipment and

paper specification.

Demonstrate the layout of

drawing on the paper and

manufacturing symbols

As contain in

Engineering

Drawing

Equipment

(p.......)

1.2 Explain the nature of interaction between the

drawing office and other departments in an

engineering production industry

1.3 Identify basic instruments and equipment in a

standard engineering drawing office and state their

functions and methods of care.

1.4 Recognise various types of drawing paper, their

standard sizes and state their uses

1.5 Prepare standard layout including the blocks,

materials and or/parts lists, numbering system,

indication of modifications, etc, in accordance with

BS 1972.

1.6 Interpret and use standard welding and surface

finish symbols

1.7 Explain the importance of job planning in the

drawing office and describe job planning procedure

in common use. E.g. programme chart.

142



36


General Objective 2.0: Know how to draw Successive Auxiliary Views of given Components


2

2.1 State and illustrate the rules of projection of

successive auxiliary views

2.2 Project from the principal views 1st, 2nd 3rd and

4th auxiliary plans and elevations of components

with irregular and curved surfaces

2.3 Use auxiliary projection to determine true

surfaces of components and dihedral angles

Demonstrate the production of

auxiliary views of lines and

plains in space. Practice the

production of 1st, 2nd, 3rd and

4th auxiliary elevations of

simple components

As contain in

engineering

drawing

equipment (p.....)

General Objective 3.0: Know how to Project True Lengths, Angles and Surfaces From Given Views


3-4

WKS

3.1 Recognise true and foreshortened lines and

surfaces in projected views.

Practice the production of true

lengths of lines and plains

As contain in

engineering

drawing

equipment (p.....)

3.2 Project true length an and surfaces involving

curves from given projected d scaled views.

General Objective 4.0: Know how to Produce Components and Assembly Drawings


5-6

WKS

4.1 Explain the needs for the following types of

drawings:

a) Component Drawings

b) Sub-Assembly Drawings

c) General Assembly Drawings

d) Installations Drawings

e) Exploded illustrations

Practice the preparation of

assembly drawings from

exploded illustrations,

components drawings and

physical devices

4.2 Recognise and represent various types of

fasteners and locking devices to BSS and state

their applications e.g. set screws and bolts nuts,

pins, rivets, locknuts, star washers, locking wire etc.

Practice the construction of

standard engineering

components from given

specifications

4.3 Illustrate various thread forms and state their

applications

143



36


General Objective 4.0: Know how to Produce Components and Assembly Drawings


4.4 Recognise and represent various standard

engineering components like bearings, gears,

springs, chains etc to B.S specifications.

Practice the use of symbolic

representations in assembly

and schematic illustrations

7-8

4.5 Recognise and apply the conventional

representation of lubrication devices e.g. grease

cup, nipples, grooves etc.

9

4.6 Recognise and apply the conventional

representations of electrical components e.g.

Transformers, switches, etc

10

4.7 Produce to scale the detailed drawings of

complex engineering components e.g. connecting

rods, machine beds, top cylinders etc.

4.8 Prepare assembly drawings of sub assemblies

and full assemblies including sections from

sketches and component drawings e.g. gate valve,

water pumps, rotary pump, isolation valve, electric

motors etc.

Practice the production of

scaled drawings of assemblies

and component parts.

Prepare a well laid out

illustration of a working

drawings for manufacturing

and assembly purposes.

4.9 Dimension working drawings in accordance

with B.S 308 (1972)

12

WKS

4.10 Recognise and apply surface finish symbols in

accordance with specifications and to relevant

standards

Practice the use of surface

finish symbols and surface lays

in manufacturing drawings

144



36


General Objective 5.0 Know the Concept of Interchangeability, Limits & Fits Systems


5.1 Define and illustrate the principal terms of limits

and fits

Practice the realization of fits

with manufactured products

Limits & fits

practical models

Measuring

Instruments

5.2 Explain the concept of interchangeability

5.3 Explain the needs for tolerances in terms of

interchangeability functions and cost

5.4 Explain the provisions of limits and fits tables

General Objective 6.0: Understand the use of Photographs and exploded illustration in engineering

communication and be able to prepare simple exploded illustration


6.1 Explain the use of photographs in engineering communication. 6.2 Extract necessary engineering information from given photographs 6.4 Explain and illustrate the procedures in the preparation of exploded illustrations: e.g.

- study of blue-prints, photographs or engineering sketches - layout planning using free hand sketches - preparation of accurate illustrations tracing and paste-up

Demonstrate the procedures for the preparation of exploded and technical illustrations

Practical materials models drawings and other design aids

6.4 Describe with illustrations the basic techniques for making technical illustrations. e,g, techniques relating to the construction of spherical surfaces, counter-sunk and counter-bore holes, bead-up or flanged out hole, irregular hydraulic lines and wires, rounded edges, intersections and sections, etc. 6.5 Demonstrate principles and techniques of shading in technical illustrations 6.6 Prepare simple exploded illustrations of sub-assembly using appropriate construction techniques

145



36


General Objective 7.0: Appreciate through undertaking simple engineering design project, the process

of engineering design


7.1 Explain in logical sequence engineering product

design process, i.e. conception, analysis, synthesis,

evaluation and implementation.

7.2 Describe the specific roles of the engineering

designer in a design and production firms.

7.3 Write initial specification of a desired project

7.4 Formulate possible solutions (sketches) in line

with the initial specifications in 7.3 above

7.5 Evaluate all possible solutions (design

sketches) in terms of basic design considerations.

E.g. function, cost, safety, construction,

appearance serviceability, ergonomics etc.

7.6 Select optimal initial design solution based on

the evaluation in 7.5 above.

7.7 Refine and prepare final design solution of the

project.

7.8 Prepare working drawings including component

drawings, assembly drawings, exploded

illustrations and parts lists.

Practice the design of simple

domestic utilities using locally

available materials

Engineering

drawing models

and engineering

design features

General Objective 8.0: Interpret and Prepare Simple Installation Drawings


8.1 Extract necessary installation information from

given instruction/installation manual of a machine

or plant.

8.2 Modify suitably given installation drawing to

meet the basic characteristics of the installation

point (plant station).

Practice the presentation of

installation drawings of simple

mechanical appliances

146

Building Drawing and Design II


AND CONCRETING WORK.

MODULE: BUILDING DRAWING II MODULE CODE: CTD 23 CONTACT

HOURS: 36 (3-

0)

Course Specification Theoretical Content/Practical

General Objective 1.0: UNDERSTAND THE GENERAL PRINCIPLES OF DESIGN OF A TWO

STORY HOUSE.


1 - 2

1.1 Explain the importance of and relationship

between function, form and beauty in building

design.

1.2 Describe the basic structural differences between

a bungalow and a storey building.

1.3 Explain the principles of balance and harmony as

used in the design of elevations and general exterior

of buildings.

1.4 Describe the basic considerations in the planning

of a story 1 residential house.

1.5 Describe the characteristics of a give plot plan

(i.e. solar orientation, direction of prevailing winds,

size of plot, access road, services, etc) and explain

their influence on the pattern of design.

1.6 Prepare a preliminary sketch design of a two

story building suitable for the plot in 1.5.

• List the relationship between

unction, form and beauty in

building design.

• List the basic structure

differences between a

bungalow and a storey

building.

• List the principles of balance

and harmony used in design of

elevations and exterior

building.

• Explain the basic

considerations in planning of

storey/residential house.

• List characteristics of a given

plot plan e..g

• Lesson plan

• Pictures

• Posters

• Drawings

1.7 Justify the choice of materials for the proposed

house in

1. solar orientation

2. size of plot

3. access road

4. services etc

• Explain the influence of 1.5

above on the pattern of design.

• Sketch design of a two storey

building suitable for 1.5m plot.

• Explain the choice of

materials for the proposed

house in 1.7. and give

assignment.

147




HOURS: 36 (3-

0)


General Objective 2.0 Draw the site and floor plans, elevations and sections of a specified two story

building.


3 - 4

2.1 Draw presentation floor plans. (Presentation floor

plans should show furniture arrangement as well as

landscaping).

2.2 Prepare the floor plans to suitable scale

(Elevations may include: front, side, left, and right).

2.3 Determine and draw to suitable scale essential

sections. (use may be made of-set and part sections)

2.4 Draw the elevations to suitable scale (Elevations

may include front, side, left, and right).

2.5 Draw the site plan. (site plan should indicate the

drainage system, building line and access,

landscaping, etc.)

• Draw floor plans indicating

1. furniture arrangement

2. landscaping

• Draw floor plans to scale i.e

ground and first floor.

• Draw elevations to scale i.e

front, side, left and right.

• Draw site plan showing.

1. Drainage system

2. Building live

3. Access road

4. Landscaping etc

• chalkboard

• Drawing

• Board, tee

• Square

• Pencil

• Set squares

• Scale rule

General Objective 3.0: Prepare essential detail drawing of components.


5 - 6

3.1 Draw to suitable scales, essential details of

components (Details may include: floor, stairs,

screen walls, boundary wall, plumbing system, floor

slabs, etc.)

3.2 Prepare working drawings of the septic tacks and

soak aways suitable for the house.

3.3 Draw the interior elevations and sections of the

kitchen and utility room.

3.4 Draw details of the kitchen and utility room

cabinets workshop.

• Draw to scales details of

components. Ie floor stairs,

and screen walls.

• Make a working drawing of

septic tank and soak aways.

• Draw the interior elevations.

• Draw sections of kitchen.

• Draw section of utility room.

• Charts

• Posters

• Drawing board

• Papers

• Tee squares

• pencils

• Draw details of

1. Kitchen

2. Utility room

3. Cabinets workshop

148




HOURS: 36 (3-

0)


General Objective 4.0: Draw detail plan of the electrical services


7 – 8

4.1 Use the presentation floor plan to determine the

type and allocation of electrical services.

4.2 Draw the electrical services plan

• Determine the type of

allocation of electrical services

on a floor plan.

• Sketch electrical services

plan.

• Draw to scale the electrical

services on a plan.

• Charts

• Pictures

• Drawing board

• Tee square

• Set square

• Pencil

General Objective 5.0 Prepare schedules


9 - 10

5.1 Prepare the following schedules:

- doors

- windows

- electrical installation

- plumbing

- painting

- reinforcement schedule.

• Prepare doors schedule

• Prepare windows schedule

• Prepare electrical installation

schedule.

• Prepare plumbing schedule

• Prepare painting schedule

• Prepare reinforcement

schedule.

• Charts

• Drawing

papers

• Drawing board

• Tee square

• Set square

• Pencil

149




HOURS: 36 (3-

0)


General Objective 6.0: Understand the principles, preparation and interpretation of simple structural

drawings.


11 -

12

Elementary structural Draughting.

6.1 Interpret and apply conventional representation

of structural elements.

6.2 Interpret simple structural design date. E.g.

design date for the two story project drawing in this

module.

6.3 Prepare structural detail drawing from given

design date and sketches.

6.4 Prepare and interpret bending schedules.

6.5 Trace and reproduce structural drawings.

• List conventional ways of

representing structural

elements.

• Explain simple structural

design date for two story

project.

• Prepare detail structural

drawing

• Given date and sketch

• Prepare and interpret

bending drawings

• Trace structural drawings.

• Reproduce structural

drawings.

• Charts

• Drawing

papers

• Drawing board

• Tee square

• Set square

• Pencil

• Reproduction

equipment.

13 EXAMINATION: 100%

150


AND CONCRETING.

MODULE: SURVEYING IN BUILDING Module Code: CBS 20 Contact Hours:

48 (1-3)


General Objective 1.0: UNDERSTAND THE BASIC PRINCIPLES AND SCOPE OF SURVEYING

AND GEO- INFORMATICS


1 - 2

1.1 Explain the principle of working from

‘whole to part’ in survey/Geo-data works

1.2 State the importance of ‘scientific

honesty’ made on observations.

1.3 Explain with examples the various

‘checks’ made on field observations and

during computation.

1.4 Define errors or disclosure in surveys

and describe methods of ‘balancing’

these.

• Run the scope of surveying working

from whole to part implication of error

checks during computing sources of

error.

1.5 Describe the various classes of

survey/Geo-data and their order of

accuracy.

1.6 Explain the principles of ‘economy of

accuracy’ and its influence on choice of

equipment and methods.

1.7 Explain the principles of ‘consistency’

in surveys/Geo-data.

1.8 Distinguish between accuracy and

precision.

1.9 Describe the procedure of entrusting

‘custody’ of survey/Geo-data monuments

to local officials and the instructions for

their ‘preservation’.

151


MODULE: SURVEYING IN BUILDING Module Code: CBS 20 Contact Hours: 48 (1-3)


General Objective 2.0: Understand the use and method of using Linen and steel tapes in making linear measurements.


3 - 4

2.1 Explain the effect of (a) misalignment (b) slope temperature (d) tension and (e)m standardization error on measured distances. 2.1 Apply the corrections listed in 2.1 above. 2.2 Identify chain surveying instruments e.g. Linen tapes, steel tapes, ranging rods. 2.3 State the necessary precautions in the use of above instruments.

• Show the various measuring equipments in use – steel tape leather and chains of accuracy attached to each equipment choose a location and organize to the execution of the chain survey.

• Steel tape • Leather • chain.

2.4 State the criteria for selection of survey lines and off sets and the limitations on lengths. 2.5 Describe the methods of making linear measurements in chain surveys – both along the survey line and along off sets stating limiting conditions on measurement accuracy. 2.6 Explain common errors in chain surveying and their sources – e.g. squaring of building corners, wrong booking of values.

2.7 Explain with sketches the basic methods of check or proof lines, and the use of control frame work for position and orientation. 2.8 Describe the general procedure for carrying out a chain survey. 2.9 Illustrate the method of booking field measurements in chain surveys.

• Discuss the steps involved in chain surveying.

• Lesson note • charts • chalk boarb

2.10 Enumerate field problems and methods of overcoming them. 2.11 Identify errors in simple chain surveys.

• List and discuss possible problems to be encountered in chain surveying.

152


AND CONCRETING.


48 (1-3)


General Objective 3.0: UNDERSTANDING THE PRINCIPLES OF MEASUREMENT OF ANGLES

WITH THEODOLITES AND BEARINGS WITH A MAGNETIC COMPASS AND PERFORM SUCH

MEASUREMENT.


5-6

3.1 Describe the various units of angular

measure e.g. grads and radian

measures, working out their conversion

factors.

3.2 Explain the working principles of a

surveyors’ (Prismatic) compass.

3.3 Describe the procedure of

observation with a surveyors’ (prismatic)

compass.

3.4 Explain the method of observation

with a theodolite.

• Identify equipment used in measuring

angles i.e. theodolite prismatic compass.

• Explain to units degree a radian.

• Illustrate the setting up of equipment

correctly.

• From no placement.

• Prismatic

compass

• Theodolite

• Staff

3.5 Explain the difference in the reading

procedure of a theodolites.

3.6 Carry out angular measurements with

prismatic compass and theodolite.

General Objective 4.0: UNDERSTAND THE BASIC PRINCIPLES AND METHODS OF USING

TOTAL STATION AND GPS EQUIPMENT.


7 - 8

4.1 Describe a total station and its accessories. 4.2 Compare total station with a theologize 4.3 Explain the working principles of a total station. 4.4 Describe the procedures of observation with total station.

• Train students to use total station on and plot readings. • Use question and answer.

* Total station target, how held GPS Theodolity, poles

4.5 Explain the working principles of GPS. Carry out GPS observations on selected points with hand held GPS.

153


AND CONCRETING.


48 (1-3)


General Objective 5.0 UNDERSTAND THE METHODS OF HEIGHTING AND LEVELLING.


9 - 10

5.1 List the specifications of leveling.

5.2 Explain the (optimum) observing

procedure.

5.3 Describe the use of and criteria for

selection of leveling datum.

5.4 Adjust collimation error in level

5.5 Adjust collimation error in level.

5.6 Describe the construction and use of

semi-permanent and permanent tertiary

bench-marks.

5.7 Enumerate the uses of tertiary level.

• Explain to basic principle of leveling.

• Define datum level and its relevance.

• Identify various equipment used.

• Compute the different methods

instrument height rise and fall.

• Dumpy level

• Tilting level

• Burning rolls

• Computing

table.

General Objective 6.0: UNDERSTAND SETTING OUT PROCEDURE FOR A MEDIUM SIZED

BUILDING INCLUDING.


11 -

12

1.1 Identify the equipment required to

set-out a building with accompanying

access roads.

1.2 Explain how to set-out a building and

the accompanying constraints.

1.3 Construct profiles and datum for a

building.

1.4 Explain how profiles are used to

control excavation and foundation levels.

1.5 Identify the instruments used for

taking internal and external dimensions.

• Define the building line.

• Identify methods of setting out e.g.

builders square, 3.4.5 and Instrument or

various kinds e.g. theodolite,

• Organise practical exercises.

• Site square

• Theodolite

• Total station

154


AND CONCRETING.


48 (1-3)


General Objective 6.0: UNDERSTAND SETTING OUT PROCEDURE FOR A MEDIUM SIZED

BUILDING INCLUDING.


1.6 Determine the areas of a building and

its site.

1.7 Explain how running internal and

external measurements are taken

horizontally and vertically.

1.8 State the procedure for checking

verticality of building using Theodolite,

optical plumb, and plum-Bulb.

1.9 Describe the invert of a drain, a sight

rail and a traveler.

1.10 Calculate suitable length of a

traveler and reduced levels of sight rails

fro9m given drawings.

1.11 Establish sight rails for horizontal

and depth control of a straight drain

between manholes.

1.12 Explain the survey terms used in

road construction.

1.13 Describe methods of route

surveying

1.14 Describe the types of control used

for Embankments, Cuttings and Levels.

1.15 Calculate volumes of cut and fill on

a given straight road with transverse

sloping ground.

13 EXAMINATION

155


AND CONCRETING.

MODULE: SURVEYING IN BUILDING Module Code: CBC 20 Contact Hours: 48

(1-3)

Course Specification: PRACTICAL CONTENT

General Objective: 1.0 UNDERSTAND THE BASIC PRINCIPLES OF THERMAL MOVEMENTS IN

BUILDING AND BUILDING MATERIALS.


1-7

* Carry out surveying exercise of an

area of at least one hectre.

* Book all field measurement.

* Plot survey in a suitable scale.

* Draw to field standard using

conventional signs and hand lettering.

• Guide the students to carry out survey

of an area and plot the survey using a

given scale.

• Survey equipment

General Objective 2.0:Carry out angular measurement with prismatic compass and theodolite.


8-12

Carry out a simple survey using a total

station.

Retrieve the measured from a total

station field data from the PC.

* Process the data from the PC.

* Plot the plan of the surveyed area

manually.

* Describe the various types of GPS

equipment e.g. hand held and tripod

types.

- Do - - do-

* Book field observations.

* Reduce level

* Explain arithmetical checks in level

reduction.

* Carry out tertiary leveling, reduction

of all permanent stations along a

circuit of about 2km using ordinary

and digital levels.

* Enumerate the uses of tertiary

leveling.

13 Examination:

PRACTICAL CONTENT

156


AND CONCRETING.


(1-3)


General Objective 1.0: UNDERSTAND THE BASIC PRINCIPLES OF THERMAL MOVEMENTS IN

BUILDING AND BUILDING MATERIALS.


1-2


a. thermal

conductivity

b. thermal resistively

c. heat transmittance

coefficient or “U”

value.

d. Thermal emissivity

e. Thermal

absorptivity.

1.2 State the factors which determine

the magnitude of the above terms for

a structural unit or building materials.

1.4 Explain the variation of the amount

of heat transmitted between the

surface of a slab of building material of

uniform thickness and composition.

• Compute the ‘u’ and ‘k’ values for

structural units or building materials from

given data.

• Student define and explain all the

thermal terms.

157


AND CONCRETING.


(1-3)


General Objective 2.0: SOUND TRANSMISSION AND CONTROL: KNOW THE GENERAL

PRINCIPLES OF SOUND TRANSMISSION AND CONTROL.


3 – 4

2.1 Explain the general principles of

sound transmission.

2.2 Explain the following terms.

a. air born sound

b. structure-born

sound

c. sound reflection,

reverberation and

reverberation time.

d. Impact sound

2.3 Explain the general principles and

methods of sound control.

• Measure sound transmission level

(intensity) in decibels.

• By visiting an acoustic building

describe the general principles and

methods of sound control (Insulation

and absorption) in buildings e.g.

• Principle of discontinuity

• Mass law

• Sound reduction at source, etc.

• Sound measuring

instruments

• Sound producing

source.

• Acoustic building

General Objective 3.0: UNDERSTAND THE BASIC PRINCIPLES OF LIGHTING


5-6

3.1 State the general functions of

lighting.


a. illumination

b. luminous flex

c. illuminance

d. luminance

e. day light factor

3.3 Distinguish between disability

glare and discomfort glare.

3.4 State ways by which glare is

controlled in buildings.

• Explain the general functions of lighting

e.g

• To illuminate the internal envolope and

contents;

• To illuminate task (reading, working

with equipment etc). to the extent

appropriate to optimal functioning of the

eye.

• Emphasize the following ways of

controlling share in buildings.

• Types, sizes, number and position of

openings

Source of light

Hall with good

lighting system.

Hall with bad lighting

system.

158


AND CONCRETING.


(1-3)


General Objective 3.0: UNDERSTAND THE BASIC PRINCIPLES OF LIGHTING


3.5 Determine the intensity of

illumination due to a given source of

light.

3.6 Calculation of day light factor.

3.7 Describer the main classes of

lighting.

3.8 State the uses of the main classes

of lighting.

3.9 Explain the interdependence of

color and lighting in buildings.

• Colour and texture of building surfaces.

• Types of lighting fittings

• Structure of internal envelope etc.

• Calculate day-light factor from given

date and buy direct measurement.

• Emphasize the following classes of

lighting.

• Direct lighting

• Indirect lighting

• General lighting

• Luminous lighting

• Data for calculating

day-light factor

• Instrument for


factor by direct

measurement.

General Objective 4.0: UNDERSTAND THE PRINCIPLES OF ELECTRICITY SUPPLY IN

BUILDINGS


7 - 8

PRINCIPLES OF ELECTRICITY

SUPPLY

4.1 State the difference between

alternating current and direct current.

4.2 Explain the construction and

working principles of generators,

motors and transformers.

4.3 Explain with the aid of experiments

the heating, lighting, magnetic and

chemical effects of electric current.

• Carry out experiments to demonstrate

the heating, lighting, magnetic, and

chemical effects of electric current.

• Mathematical calculation of power and

energy consumption in simple circuit.

• Identify earthing in an electrical

circuits. E.g in a bungalow.

• Simple electric

circuits

• Electric heater

• Electric busy

• Solenoid

159


AND CONCRETING.


(1-3)


General Objective 4.0: UNDERSTAND THE PRINCIPLES OF ELECTRICITY SUPPLY IN

BUILDINGS


4.4 Calculate the power and energy

consumption in simple circuits.

4.5 Explain the function of earning in

electrical circuits.

4.6 State the purpose and explain the

functioning of circuit breakers and

fuses.

4.7 Illustrate the correct method of

distributing electrical power from the

mains to socket outlets and lighting

points in house wiring systems.

4.8 Compute total electrical load for a

g9ven load for a given house wiring.

• Identify circuit breakers and fuses in a

building.

• Exphasize the correct method of

distributing electrical power from the

mains (NEPA line or stand by generator)

to socket outlets and lighting points in

house wiring systems.

• Interpret electrical installation drawings

of a small bungalow or two storey

building.

• circuit breakers

• fuses

• NEPA line

• Generator

• Bungalow with

complete wiring

system

• Electrical

installation.

• Drawing of a small

project i.e. the

bungalow.

4.9 Calculate fuse capacity for house

wiring system.

4.10 Identify dangers of electricity and

essential safety measures against

them.

• Emphasis the dangers of electricity

and enumerate the essential/necessary

safety measures against them.

160


AND CONCRETING.


(1-3)


General Objective 5.0: Know the basic principles of plant installation in buildings.:


9-10

5.1 Explain the working principles of lift and escalators. 5.2 Outline safety, principles for lifts and escalators. 5.3 Explain the general principles of air-conditioning. 5.4 Describe various mechanical methods of ventilation. 5.5 Explain the principle of mechanical ventilation. 5.6 Outline the general installation requirements for central and room air conditioning equipment in dressings. 5.7 Define the following: relative humidity dew point 5.8 Explain the occurrence of condensation in buildings. 5.9 Describe methods of control of condensation.

• Visit a building with escalators and or lift. • Emphasize maintenance principles for lifts and escalators. • Illustrate the application of turbulent and non turbulent flow in domestic water supply and drainage • Determine experiments the rate of flow from an orifice. • Calculate the velocity of flow of water from given date • Calculate pipe sizes for drains or water supply from given date. • Experimentally explain the general principles of installation of cold and hot water supply systems having water pumps.

• Escalators • Air conditioners • Orifice • water containers • water • data for calculating velocity of flow of water.

5.10 Explain the principle of turbulent and non-turbulent flow. 5.11 Explain the followings terms and state their importance in the design and installation of piped water supply system.

a. static head of water b. velocity head c. friction head d. pressure head e. water hammer f. coefficient of velocity g. coefficient of discharge.

161


MODULE: SURVEYING IN BUILDING Module Code: CBC 20 Contact Hours: 48 (1-3)


General Objective 6.0: ANALYSE FORCES IN SIMPLE BUILDDING STRUCTURES AND STRUCTURAL FRAME WORK.


11-12

6.1 State the lows of static equilibrium.6.2 Explain with illustrative examples the laws of static equilibrium e.g. (V) = 0 (H) = 0 (M) = 0 6.3 Determine the magnitude and position of the resultant of a simple system of coplanar forces in. 6.4 Analyse forces in simple pin-jointed frame work.

• Determine the magnitude and position of the resultant of a simple system of coplanar forces by: - graphical method. • Method of resolution experiment. • Experiment. • Analyse forces in simple pin-jointed frame-work • by method of resolution of force diagram method • method of section

• Charts • Model of simple pin-jointed frame work.

6.5 Identify common loading systems for various building structures 6.6 Determine beam reaction, shear force and bending moments in simply supported beams under various loading systems using.

a. Link polygon system b. method of resolution c. experiments.

6.7 Define the following properties of structural sections.

• Emphasize the following common loading systems concentrated load on beams, strandion and nodes in frame-works. • Knife –edge load on partitions or walls. • Uniformly distributed load such as self-weight wind load,. • Distributed load with linear variation such as loads against pilling retaining walls triangular load such as block-work over opening. • Calculate beam reactions under various loads.

* Model • beam • sections

a. centre of gravity b. moments of inertia c. radius of inertia d. radius of gyration e. section modules

6.8 State the general theory of simple bending i.e. E/R = M/F = F/Y

• Determine he value of the following for a given section. • Centre of gravity • Moments of inertia • Radius of gyration • Section modules • Determine maximum bending stress and moment of resistance of beam sections.

13 EXAMINATIONS

162

Advanced Brick and Blocklaying



MODULE: ADVANCED BRICK AND

BLOCKLAYING

MODULE CODE: CBC 23 CONTACT HOURS:

288 (2-10)


General Objective 1.0: UNDERSTAND THE GENERAL PRINCIPLES AND METHODS USED IN

CHAIN SURVEYING AND BE ABLE TO CARRY OUT HAIN SURVEY.


1-2

1.1 Explain the metric system of linear

measurement as applied in survey.

1.2 Describe the construction of chain, bands,

and tapes.

1.3 Explain the use of construction chain,

bands, and tapes.

1.4 Describe the care of construction chair,

bands and tapes.

1.5 Explain the effect of the following on

measurement:

a. Misalignment

b. Slope

c. Temperature

d. Tension

e. Standardization error

• Use tape measure, chain etc.

to demonstrate the system of

linear measurement.

• Show how to construct chain,

bands and tapes.

• Demonstrate the use of

construction chain bands and

tapes.

• Explain the care of

construction chain, bands and

tapes.

• Show the effect of the various

factors by practically

introducing the impediments to

accurate measurement.

• Chain, tape measure

mechanical tape etc.

• Tape measure, line

etc.

1.6 Prepare tables for making correction for

slope, temperature and standardization error.

1.7 Describe the construction of Abney level.

1.8 Explain the working principles of Abney

level.

1.9 Use the (Abney level) instrument to

measure slope.

1.10 List various chain surveying equipments.

• Give example of a table

showing correction for slope,

temperature and

standardization error.

• Using a sketch, explain the

construction of an Abney level.

• Pen, pencil, ruler,

sheets of paper or

graph paper etc.

• Pictorial sketch of an

Abney level.

• Sope, Abney level.

163




BLOCKLAYING


288 (2-10)





3-4

1.11 State necessary precautions to be taken

in the use of chain surveying equipments e.g.

chains, bands, liner tapes, ranging rods,

optical square etc.

1.12 State the criteria for the selection of

survey lines and off-sets and limitations on

lengths.

• Bring various chain surveying

equipment to the classroom

and make the students to

identify each as they are being

listed.

• Show vivid example of the

proper ways to handle the

different types of chain

surveying equipments.

• List the criteria in the other of

preference on the chalkboard.

• Chain, tape, liner

tape survey tape,

survey rod dumpy

level etc.

• Chains, bands, liner

tapes, ranging rods,

optical square etc.

1.13 Describe the methods of making linear

measurements in chain surveys-both along

the survey line and along offsets.

1.14 State their sources e.g. squaring of

building corners, wrong booking, rounding off

values.

1.15 List the common errors in chain

surveying.

1.16 Explain the common errors in chain

surveying.

• Practically the methods

before the students and

thereafter ask them to group

and repeat the exercise.

• Ditto

• After listing on the

chalkboard, explain the

process of common errors and

the causes in chain surveying.

* Chalkboard, chalk

etc.

1.17 State the sources of the common errors

in chain surveying e.g. squaring of building

corners, wrong booking, rounding off values.

1.18 Explain with sketches, the basic methods

of chain surveying in e.g. offsets and use of

check or proof lines.

• State the sources on the

chalkboard and quire the

students as to how to

recognise them and avoid such

errors.

• Sketch on the chalkboard the

subject matter and describe the

process in detail.

• Ditto

• Sketch, chalkboard,

chalk etc.

164




BLOCKLAYING


288 (2-10)





1.19 Using sketches, explain the use of

control frame-work for position and

orientation.

1.20 Describe the general procedure for

carrying out a chain survey.

1.21 Describe the method of booking fields

measurement in chain surveys.

• Sketch the subject matter on

the chalkboard and explain the

process to the students.

• After verbally describing the

subject, explain further using

questions and answer

technique.

• Ditto

• Sketch, etc.

1.22 List field problems encountered in chain

survey.

1.23 Explain the methods of overcoming such

field problems.

1.24 Identify field work errors in simple chain

surveys.

1.25 State how to correct field work errors in

simple chain surveys.

• List the problems in the

classroom and ask the student

to repeat the list.

• Ditto.

• Guide the students in the

classroom to identify along with

you the subject matter. Give

example and ask them to work

on simple examples given in

the classroom.

• Paper, pencil, ruler,

etc.

General Objective 2.0: EXPLAIN THE WORKING PRINCIPLES OF LEVELLING INSTRUMENTS

AND APPLICATIONS.


5-6

7 - 8

2.1 Describe the construction of leveling

instruments e.g. the dumpy level, the tilting

level, etc.

2.2 Explain the working principles of leveling

instruments e.g. the dumpy level, the tilting

level, etc.

2.3 Describe methods of care of leveling

instrument e.g. dumpy level, tilting level etc.

• Sketch the dumpy level and

tilting level and show how it is

constructed.

• Demonstrate how the dumpy

and tilting levels work.

• With the aid of a dumpy level

or tilting level, show how to

care for such instruments.

• Photograph, sketch

etc.

• Dumpy level, tilting

level.

• Dumpy level, tilting

level etc.

165




BLOCKLAYING


288 (2-10)


General Objective 3.0: KNOW THE METHODS AND BE ABLE TO SET OUT SIMPLE FRAMED

STRUCTURES AND DRAINS.


9 -

10

3.1 Describe with sketches various methods

of setting out, suitable setting out, suitable for

the following:

a. Standard block and brick

building.

b. Framed structures (steel

and reinforced concrete)

c. Drain, septic tank, soak

etc.

• Describe what is meant by

preliminary site work thereby

identify the temporary services

and importance.

• Discuss the method setting

block/brick work.

• Describe process of fixing

framed structures.

• Describe the methods with

sketches, how drain, septic

tanks and soakways etc.

• Chart/Pictures

• Block

• Brick

• Visit site

• Setting equipment

11-

12

4.1 Explain the construction problems

associated with various types of subsoils e.g.

- water logged

- clay (alluvial) subsoil

- running sand

- made up ground.

4.2 Estimate the dead load per square metre

on subsoil due to the walls of a simple

structure e.g. 2 story buildings:


drainage.

• Sump hole

• Dewatering with

• The drawing


• Loading test should be carried

out in a laboratory setting.

Give example to the students

on the chalkboard, there after,

give assignment.

• Charts/pictures

• Equipment.

• Soil to be tested,

loading test machine &

Equipments.

13 EXAMINATIONS

166




BLOCKLAYING


288 (2-10)


General Objective 3.0: KNOW THE METHODS AND BE ABLE TO SET OUT SIMPLE FRAMED

STRUCTURES AND DRAINS.


1-2

4.3 Determine graphically the width of strip

foundation for a given structure:

4.4 Describe methods of constructing the

following types of foundations:

- Steel grillage

- Deep pile

- Reinforced concrete

• Work to be submitted on a

subsequent day.

• Give example to the student s

and assign how work.

• Describe the process to the

students in the classroom and

give examples.

• A take home test could also

be given pictorial

representation of tractor trench

digger etc should be presented.

* Films, video tapes,

computer simulation

etc of trench digger

backwater, trench

hoes.

- base for columns and

- piers.

4.5 Explain the effect of ground formation and

general contour of site on choice of

foundation.

4.6 Identify common machines used for deep

excavation e.g. trench digger, trench how,

back cater etc.


controlling water table in deep excavation.

4.8 Describe with sketches timbering systems

for trenches in various subsoils.

• Sketch deep excavation use

sketch to describe and explain

the methods of control.

• Give examples and assist the

students to try their hands in

carrying out assignments.

167




BLOCKLAYING


288 (2-10)


General Objective 5.0: UNDERSTAND THE PRINCIPLES AND TECHNIQUES OF CONSTRUCTING

VARIOUS TYPES OF WALLS.


3-4

5.1 Interpret building plans for walling details.

5.2 Transfer levels and set out simple

structure e.g 2 – story building.

5.3 Describe methods of transferring wall line

from profile to the surface of foundation.

• Use building plan to explain

details.

• Recitalist the setting out and

level transfer for 2-storey

building.

• The use of lime as a method

should be reinforced.

• Detailed building

plan.

• Dumpy level, wood-

pegs, wood profile,

line, rails, hammer etc.

• Line, digger, wood-

profiles, wood pegs,

hammer nail, angle

etc.

5 - 6

5.4 Describe the characteristics in the use of

various damp proof materials in common

materials in common use e.g asphalt, cement

mortar (1.1) felt, P.C. membrane etc.

• Arrange to lay blocks from

foundation to D P C level.

• Carryout a little project on the

built DPC level block wall as n

above.

• Block, cement; sand,

water, trowel line etc.

• Felt, asphalt cement

mortar (1.1) PVV

membrane etc.

5.5 Describe the suitability in the use of

various damp proof materials as in above

(5.5.a).

5.6 Describe the precautions to be taken in

the use of various damp proof materials as in

(5.7) above.

5.7 Describe with sketches methods of laying

damp proof materials in the following

structures:

• Provide different damp proof

materials introduce them to the

students and describe each

suitability in terms of usage.

• Explain the handling method

and care to be taken to get

maximum performance.

• Practicalise laying by

identifying a damp surface

around your school and

applying a chosen material.

• Damp proof materials

of all shade.

• Damp proof material

of different maker.

• Damp proof material

of your choice.

168

PROGRAMME: ADVANCED NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING, BLOCKLAYING AND CONCRETING WORK.

MODULE: ADVANCED BRICK AND BLOCKLAYING

MODULE CODE: CBC 23 CONTACT HOURS: 288 (2-10)


General Objective 5.0: UNDERSTAND THE PRINCIPLES AND TECHNIQUES OF CONSTRUCTING VARIOUS TYPES OF WALLS.


- basement - ground floor - wall above ground level - cavity wall opening - parapet wall of gutter.

5.8 Apply suitable damp proof materials in given situations. 5.9 Describe with sketches various types of retaining walls and piers.

• Ditto. • Sketch retaining wall on the chalkboard and describe the different types sketch. • Use the sketch to state its suitability.

• Ditto • Retaining walls sketch.

5.10 State situations in which they are suitable which they are suitable for the use prescribed. 5.11 Interpret a given drawing and construct brick retaining wall to specification. 5.12 Interpret given drawing and construct attach and detached piers to specification in sand creet blocks and in bricks. 5.13 Construct brick walls up to 2B thick and above in the following bonds:

• Give a drawing to be used (in real life situation) in constructing a brick retaining wall to specification. • Draw the picture of a pier use the sketch to specify and interpret the sketch. • Draw the picture of a pier use the sketch to specify and interpret the sketch.

• Detailed drawing bricks, cement, sand (sharp) etc. • Drawing sketch etc. • Bricks, cement sand etc..

- garden and wall bond. - English bond - Flurench bond

5.14 Construct corbels and plinths to walls up 5 to 2.2 thick. 5.15 State the purposes of cobles and plinths in wall construction. 5.16 Build a decorative panels in brick walls up to 2.2 thick in any bony e.g. herring bone pattern, basket weaves, dog-leg etc.

• Part in the entire process. Thereafter, assign another brick-wall to them for construction using the 1st one as an example. • Ditto • Ditto

• Bricks, sand, cement etc. • Ditto.

5.17 Set instructing decorative courses, cornices and chases to specification: 5.18 State the purposes of glass blocks in building construction and build glass block walls.

• Do the setting with the students assisting thereafter assign same work to chain. • Demonstrate the building of glass block wall.

• Glass blocks, adhesive, etc.

169





General Objective 6.0: CARRY OUT UNDERPINNING AND STRENGTHENING OF EXISTING

WALLS.


9-10

6.1 Define under pinning.

6.2 State its purposed.


underpinning e.g shoring and alternate

methods.

6.4 Describe with sketches systems of

shoring walls e.g

- dead shore

- flying shore

- rating shore

• Define underpinning on the

chalkboard.

• State its purposes and assign

home work to the students on

the same subject matter.

• Sketch the different types of

shoring system and explain on

the chalkboard.

• Carry out this exercise in the

class room using the

chalkboard.

• Chalkboard, chalk

etc.

• Chalkboard,

sketches, chalk etc.

6.5 State their applications.

6.6 Explain the purpose of thickening an

existing wall.

6.7 Describe methods of thickening existing

walls.

6.8 List problems that may b encountered in

the process of thickening existing walls.

• Ditto • Ditto

6.9 State necessary precautions to be taken

note: problems to be treated may include.

Bonding new to existing bricks, existing

foundation extension etc. 6.10Underpin,

extend foundation and thicken existing wall to

specification.

• After explaining in the

classroom: search for a

building around you that needs

under pinning and carry out the

exercise.

• All under pinning

equipment and

materials.

170





General Objective 7.0: KNOW THE TECHNIQUES AND BE ABLE TO CONSTRUCT ALL TYPES OF

BRICK ARCHES.


11-

12

7.1 Make full scale drawings, cut templates

for visors and produce brick volissoils for:

- gothic arches

- elliptical arches

- any type of arches up to 3

metres

- span and two brick and

above thick.

• Prepare the drawing and cut

templates from it to show the

students.

• Given them the same assign

exercise.

• Provide materials as

required..

• Sketch etc.

7.2 Describe with sketches the construction

and erection of centres suitable for the

constructing of gothic, elliptical and any other

types of arches up to a span of three metres:

7.3 Set up centers and construct any types of

gothic, of a specified span using the prepared

voussoirs in 7.1 above.

• Use a sketch to explain the

construction centres.

• Ditto.

• Sketch etc.

• Ditto.

13 EXAMINATION: Practical 60%; Theory 40%.

171




BLOCKLAYING

MODULE CODE: CBC 23 CONTACT

HOURS: 288 (2-

10)

Module Specification: PRACTICAL CONTENT

GENERAL OBJECTIVE: CARY OUT SURVEYING, LEVELLING AND THE CONSTRUCTION OF ALL

TYPES OF BRICK AND BLOCK WORK TO SPECIFICATION.


1-3

Chain Surveying

1.1 Carry out survey of an area of at least

one lecture, book all field measurements.

1.2 Plot the survey of the area to a

suitable scale.

1.3 Complete all measurement and

calculations to the nearest figure, drawing

to field standard using conventional signs

and hand lettering.

• Decide which area of your vicinity to

be surveyed, them take the students on

a field trip to survey the area with your

assistance and presence.

• Ditto.

• Survey

equipment etc.

• Ditto.

4-7

Levelling

1.4 Carry out necessary adjustment on a

given levelling instrument.

1.5 Carry out a closed serial levelling of

about half a kilometer

1.6 Plot and complete the survey to

suitable scale

1.7 Plot the ground profile of a given

section of a contour map.

• Guide the students to carry out a

given leveling project to specification

Levelling

instrument.

• Field map, etc.

1.8 Set out a simple framed structure and

a drainage system

• Use as field work to show how setting

out is carried out.

• Setting out

equipments.

1.9 Carry out simple test to determine the

bearing capacity of soil.

• Guide the students to conduct load

bearing capacity test of given soil.

• Equipment.

• Soil. Etc.

172




BLOCKLAYING


HOURS: 288 (2-

10)





8-10

Brick and Block Work

2.1 Transfer wall line from profile to

foundation surface.

Set up wall to DPC level

2.2 Construct brick wall up to 2B thick and

above the following bonds:

- garden and wall bond

- English bond

- Fletching bond, etc

2.3 Construct corbels and plinth in wall up

to 2.2mm thick.

2.4 Build in decorative panels in brick wall

up to 2.2mm thick in any bond.

• Guide students to transfer wall line

from profile e.g herring bone pattern,

basket weaves, etc. and set up wall to

DPC level..

• Materials

• Tools

2.5 Underpin, extend foundation and

thicken existing wall to specification.

• Guide the students on the under-

pinning project.

• All under pinning

equipment and

materials.

11-

12

ARCES

3.1 Make full scale drawings, cut

templates for visors and produce brick

volissoils for:

- gothic arches

- elliptical arches

- any type of arches up to

3 metres

- span and two brick and

above thick.

• Guide the students to perform the

given task to specification..

• Provide

materials as

required the

project.

173




BLOCKLAYING


HOURS: 288 (2-

10)





3.2 Set up centers and construct any

types of gothic, of a specified span using

the prepared voussoirs in 7.1 above.

• Sketch etc.

13 Examination: Practical 60% Theory 40%

174

Advanced Concrete Work PROGRAMME: ADVANCED NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING ETC

MODULE: ADVANCED CONCRETE WORK Module Code: CBC 24 Contact Hours 96 (2-6)

Module Specification: Theoretical/Practical Contents.

General Objective 1.0: KNOW THE EFFECTS OF THE PHYSICAL PROPERTIES OF CONCRETE MATERIALS ON QUALITY OF WET AND HARDENED CONCRETE.

Week Specific Learning Outcome: Teacher Activities Learning Resources

1

Properties of Concrete & Concrete Materials 1.1 State the effects of the used of ‘state’ or deteriorated cement on concrete e.g.

- loss in strength - loss of adequate setting - susceptibility to chemical attack.

1.2 State the effect of surface texture of. Aggregate on workability bond strength and quantity of water required in the mix.

• Use the chalkboard to explain the process of state and deteriorated cement. Then practicalise it by using state or deteriorated cement to show loss in strength loss of adequate setting etc. • The subject should be taught in the classroom, thereafter, it should be practicalised.

• Cement, etc. • Aggregates, cement, water etc.

1.3 Describe the effect of particle shape on workability and strength e.g.

- cubical aggregates - produce stronger concrete - partly aggregates produce poor concrete.

• Use the classroom setting to teach the subject. • Try as much as possible to sketch and explain the process to the students. Use various shapes of aggregates to show and prove the raised questions. • This should first be taught in the classroom then taken to the workshop for practice.

• different shapes of aggregates, cement, water, mixer etc. • all types of impurities, chemicals e.g HCL, mixed with aggregate.

1.4 State the effects of impurities (mud, chemicals etc) on the quality of wet and hardened concrete e.g.

- Impurities may delay setting, reduce bond strength, cause discolouration and straining and reduce strength.

• Use the method in the method in the above to teach and show students the effect of impurities in the delay of concrete hardening.

• Impure aggregate cement, sand water etc.

175

PROGRAMME: ADVANCED NATIONAL TECHNICAL CERTIFICATE IN BRICKLAYING ETC

MODULE: ADVANCED CONCRETE WORK Module Code: CBC 24 Contact Hours 96

(2-6)


General Objective 2.0: UNDERSTAND THE NEED FOR MIX DESIGN AND METHODS OF

CONTROLLING QUALITY OF CONCRETE ON SITE.

Week Specific Learning Outcome: Teacher Activities Learning

Resources

2

2.1 Define the term ‘Mix design’.

2.2 State reasons for the design of mix.

2.3 State factors to be considered when

designing a mix e.g. workability,

required strength and durability.

2.4 State mix designs for concrete used

in standard house construction.

2.5 Explain the need for the control of

quality of concrete produced on site e.g.

• On completion of the module, students

should be able to define and state what

‘mix design’ is and reasons for using mix

design to achieve workability in concrete.

This can be achieved by the teacher

giving examples and teaching the subject

effectively on the chalkboard.

• Teaching aids,

chalkboard etc.

• Ditto.

- Control of material

storage.

- Control of batching

- Testing and checking

of quality of cement and

water at adequate

intervals.

- Testing of cubes of

concrete batches.

2.6 Describe the various stage in quality

control of concrete produced on site

e.g.

- Control of material

storage.

• Students should be taught LIFO –"last in

first out" on materials storage also FIFO –

"first in first out" to enable them

understand the storage system on site.

• Cubes should be tested from concrete

batches for compression test.

• This can be prepared in the workshop

for crushing test. See 2.4 above

• Concrete cubes,

compression test

machine etc.

- Control of batching

- Testing and checking

of equality

- Of cement and water

at adequate intervals.

- Testing of cubes of

concrete batches.

• After theoretical explanation, the teacher

should carry out workshop test on the

various subject matter.

• Test materials as

required.

176


MODULE: ADVANCED CONCRETE WORK Module Code: CBC 24 Contact Hours 96 (2-6)


General Objective 3.0: UNDERSTAND THE BASIC PRINCIPLES OF DESIGN OF FORM WORK FOR VARIOUS STRUCTURES.


3-4

3.1 State the requirements for forms for pre-cast and structures. 3.2 List factors to be considered in the design and construction of formwork for various structures e.g. - rate of pour ; surface furnish

- method of compaction; Cost; Shape and size structures; Support etc.

• Use the chalkboard to teach the subject matter after, practical should be carried out in the presence of the students. • Same as above.

• Planks, hammer, nails, etc.

General Objective 4.0: UNDERSTAND THE BASIC PRINCIPLES OF REINFORCING VARIOUS CONCRETE STRUCTURES.


5-6

4.1 Describe with sketches general reinforcement arrangements in relation to structures listed below

- road slab - stairs straight - flight, dog leg. - Open well and spiral - Retaining walls - Cofferdem, and caissons. - Suspended slabs canopies cantilever - Water tank and reservoirs - Electric polis - Concrete walls.

• Use detailed, designed structural drawing to describe subject. • Design a simple, slab stair case etc. to teach the students simple design methods.

• Detailed designed engineering drawing etc.

- Channels and - Concrete rings.

4.2 State the precautions to be taken to ensure the production of sound insitu concrete structures.

• State precautions on the chalkboard and allow students to practice. Give home work to reinforce the learning process.

• Chalkboard, design notes, chalk etc.

177



(2-6)


General Objective 5.0: KNOW THE BASIC METHODS OF PRODUCING PRECAST CONCRETE

UNITS.


Resources

7 - 8

5.1 Describe methods of producing

precast units e.g.

- electric poles

- culvert rings

- box culvert units

- panel walls.

- Specify material and

mix ratio for producing

the precast as in 5.1

(a).

5.2 Produce pre-cast units listed in 5.1

above.

• Prepare simple formwork of the different

components at different mix ratio cast

same and use the out come to explain the

methods of producing pre-cast units to

the students.

Ditto

• Plank for form

work, nails

hammer etc.

• Ditto.

5.2 Name various machines and plants

used in the making and bonding of pre-

cast units in 5.1 above e.g.

- spring machine

- vibrators

- hydraulic press

- cranes, etc.

5.3 Describe various machines and

plants used in the making and handling

of pre-cast units in 5.1 above e.g.

• Use pictorial method to show the

students different plants used in making

and handling pre-cast units.

• Ditto.

• Video films.

Television

monitor,

computer, slide

etc.

• Ditto.

- spring machine

- vibrators

- hydraulic press

- cranes etc

• Show examples of a spiring machine

vibrator etc to the students.

• Spiring machine

vibrator,

hydraulics press,

cranes etc.

178



(2-6)


General Objective 6.0: UNDERSTAND THE PRINCIPLES OF CONSTRUCTION OF VARIOUS

CONCRETE STRUCTURE FRAMES.


Resources

9 -10

6.1 List the work sequence in the

construction of in-situ concrete framed

buildings up to form storey high.

6.2 Describe the work sequence in the

construction of in-situ concrete framed

buildings up to four storeys high.

6.3 Out line factors to be considered in

the erection of profile boards for setting

out in-situ concrete framed buildings.

• Explain on the chalkboard and with the

aid of sketches.

• Describe on the chalkboard and

encourage the students to carry out

assignments on the subject area.

• Ditto.

• Sketch,

chalkboard etc.

• Setting out

equipments.

• Sketch etc.

• Setting out

equipments.

• Sketch etc.


maintaining vertical and horizontal

control in the construction of in-situ

concrete framed buildings.

Note: Treatment may

cover use of reference

frame for setting out of

columns and centre

lines axes, plum-bob

and optical plumbing

methods to ensure

vertical alignment.

6.5 Explain the need for close

supervision of concreting operations.

6.6 Explain the need for close

supervision of concreting operations,

6.7 Identify critical areas of work

supervision with reference to framed

building construction.

• Practicalise this method to the students

by actually setting out a framed building

after exhausting the subject matter in the

classroom.

• Sketch the method and present the

sketch to the students in a classroom

setting.

• Use an optical plumbing method to align

your profile and building lines during

setting out to show the students how to

go about doing it.

• Setting out

materials etc.

179



(2-6)


General Objective 7.0: KNOW THE MAIN TYPES OF CONCRETE FLOOR, METHODS OF

CONSTRUCTION AND THEIR APPLICATION.


Resources

11-12

1.1 Describe the following types of floor

construction:

- bean and slab

- drop bean slab

- waffle grid slab

- flush slab.

• Explain the process of floor construction

to the students using sketches and

drawings on the chalkboard.

• State why different types floors are used

for different purposes.

• Allow students to attempt designing and

constructing a given type of floor.

• Sketch chalk,

chalkboard etc.

• Ditto.

1.2 Distinguish between.

- Self-centering and

- Non-self centering

floors

1.3 State their relative advantages and

disadvantages.

1.4 Describe with sketches various

types of self centering floors e.g.

- hollow and ribbed pre-

cast reinforced

concrete slabs.

- Solid light concrete

slabs

- Pre-cast reinforced

beans which laid

between.

• Use the method as above. • Chalkboard,

chalk, etc.

7.5 Construct models of self-centering

floors.

• Prepare models and use as an aid to

describe self-centering of floors to the

students.

• Model, etc.

13 EXAMINATION: Practical 60%, Theory

40%

180

Components and Finishes


AND CONCRETING.

MODULE: COMPONENTS AND FINISHES MODULE CODE: CBC 25 Contact Hours: 96

(2-6)

Module Specification Theoretical/ Practical Content

General Objective 1.0: UNDERSTAND THE PURPOSES AND USES OF FINISHES IN BUILDING.


1

1.1 Explain with illustrations the functions of finishing

in buildings eg. Aesthetics, services, protection etc.

1.2 State and explain the factors affecting the choice

of various types of finishing.

1.3 Materials e.g. structural requirements.

• The teacher illustrates the

effect of finishing on floor,

wall and roof construction to

the students.

• Allow questions from the

students or the teacher ask

or the teacher ask them.

• Charts

• Showing

• Finishing

• Applied to wall,

floor and ceiling.

1.4 Environmental requirements, cost dimensional

requirements, statutory regulations, durability,

workability etc.

General Objective 2.0: Know the functions of rendering sand facing and how they are selected for use.


2.1 Define renderings.

2.2 State the functions of rendering in buildings.

2.3 Explain the main factors in the choice of various

types of renderings eg.

a. Appearance required

b. Type of background its

• The teacher organises the

students to do renderings as

one method of finishing in

the workshop.

• Charts showing

• Smooth floated

finish

• Pebble dash

2.4 Enumerate the characteristics, suitability and

methods of application of various types of renderings

e.g

a. smooth floated finish

b. pebble dash

c. scraped finished etc.

2.5 Enumerate the properties of the various

background materials, and their effects on the choice

of rendering.

• Charts showing

types of facings.

181


AND CONCRETING.


(2-6)


General Objective 2.0: Know the functions of rendering sand facing and how they are selected for use.


2.6 Explain the factors, affecting the choice of

different types of facings.

2.7 Describe the types of background required for

facing.

2.8 Enumerate the various fixing materials used for

facings, their properties and factors affecting their

choice.

General Objective 3.0: KNOW THE VARIOUS CLADDING MATERIALS IN BUILDINGS, AND THEIR

IMPORTANCE.


2

3.1 Explain the reasons for the development of

cladding panels.

3.2 State the objectives of standardising sizes for

cladding panels.

3.3 Enumerate the advantages of cladding panels eg

fire protection, insulation.

• The teacher narrates and

demonstrates how various

types of cladding panels are

fixed and jointed.

• Students should be called

one after the other to do the

demonstration.

• Samples

cladding panels

3.4 Describe the various types of cladding panels eg

infill panels.

c. acoustic panels etc.

3.5 Illustrate the various materials used in making the

cladding panels in 3.4 above and explain how they

are manufactured.

182


AND CONCRETING.


(2-6)


General Objective 4.0: UNDERSTAND THE PURPOSE AND APPLICATION OF CURTAIN WALLING

IN BUILDING CONSTRUCTION.


3

4.1 Define curtain walling.

4.2 Enumerate the information required by the

manufacturers for producing curtain walls.

4.3 Explain the important factors required for a

checklist as to the quantify of any curtain wall.

• Demonstrate the

production of curtain walls

with the students.

• Charts showing

• Produced curtain

walls.

General Objective 5.0: UNDERSTANT THE MANUFACTURE, PROPERTIES AND APPLICATION OF

CLADDING SHEET/BOARD CONSTRUCTION.


4-5

5.1 Explain the functions of sheet cladding materials.5.2 List the various types of sheet cladding materials, their standard forms and properties. 5.3 Describe the manufacture of plaster board, fibre board, asbestos cement sheets, wood-wool slabs etc. 5.4 State the general used of the materials in 5.3 above. 5.5 Explain with illustrations the various methods of fixing sheet claddings.

• Teacher demonstrates to the students the various methods of fixing sheet claddings.

• Charts cladding materials • Fibre board • Asbestos cement.

General Objective 6.0: KNOW HOW TO PREPARE ROOF FLASHINGS IN SHEET METAL


6-7

6.1 Sketch the leasie shape of flashings. 6.2 Describe with illustration, methods of setting out sheet metal prior to forming shaped flashing 6.3 Enumerate the various kinds of metals used for roof flashing and the type factors affecting their choice.

• The teacher draws the basic shape of flashings on the chalkboard and instructs the students to draw them into their notebooks.

• Charts • Metals • Flashing

6.4 Describe the and illustrate with demonstrations the methods of forming flash shapes by:

a. bonding b. dressing c. folding d. jointed insertions

183


MODULE: COMPONENTS AND FINISHES MODULE CODE: CBC 25 Contact Hours: 96 (2-6)


General Objective 7.0: KNOW THE PROPERTIES OF VARIOUS INSULATION AND WATER PROOFING MATERIALS AND METHODS OF FIXING.


8-9

7.1 Explain the importance of non-structural insulation in building. 7.2 State the various types of insulation materials used in building industries, eg building boards, building papers, finish flooring materials, wool, blankets rubber, glass, acoustic tile, wood, cement mortar, bricks, cement plaster, asbestos-cement, partitioning. 7.3 Enumerate the properties of the insulation materials in 7.2 above. 7.4 Describe the various relative used of the insulation materials in 7.2 above.

The teacher demonstrates the installation of the insulation materials to the students.

• Charts • Building papers • Wood • Blankets • Acoustical tile • Cement mortar etc.

7.5 List the housing requirements of insulating a building. 7.6 State the effect of insulation in a building. 7.7 Explain how to fix insulation materials in a building. 7.8 Explain with illustrations the effects of ground water level. And run-off on building structure. 7.9 List the various water proofing materials in common use e.g. asphalt, bituminous fibre, polyethylene etc.

• Charts on groundwater level and run-off on building structure. • Water-proofing materials e.g. • Asphalt • Bituminous fibre etc.

7.10 Explain the conditions under which buildings are dampened. 7.11 Enumerate various preventive measures of protecting building structures from dampening e.g. permeability of concrete, cracks and joints in masonry, hydrostatic pressure, integral water-proofing cement-base water-proofing coating bricks, coating with asphalt and bituminous emulsion.

• The laying of water-proofing materials. • The teacher gives the students chance to practice the laying themselves.

7.12 Describe with illustrations the various methods of laying waterproofing materials listed in 7.11 above and explain the factors influencing the choice of each of the materials. 7.13 Describe the various ways of correcting leaked foundations, walls, slabs, and roofs.

184

General Objective 8.0: UNDERSTAND THE COMPOSITION, PROPERTIES AND APPLICATION OF

PAINT TO BUILDINGS AND VARIOUS MATERIALS.


10-12

1.1 Explain the importance of painting in buildings eg

aesthetic, weather protection.

1.2 State the main constituents of oil paints, emulsion

paint, varnish and enamel, fire resistant paints etc.

1.3 Enumerate the various characteristics of the

types of paint referred to in 8.2 above.

1.4 State the procedures for preparing paints for use.

1.5 Describe the drying processes of paints.


to the students the

procedures for preparing

paints for use.

• Samples of

some paints eg.

• Oil paint

• Emulsion paint

• Colour chart.

1.6 Outline the function of the following paint

systems:-

a. primer

b. undercoat and

c. finishing coat

• The teacher assembles the

items listed in 8.7 above for

the students to identify.

• Ferrous metal

• Non-ferrous

metal

• Charts

1.7 Explain the selection and application of paint, to

ferrous metals,

- nonferrous metals,

- brick

- stone

- concrete

- gypsum

- lime,

- timber and

- building boards.

8.8 List and explain the main causes of pain failure.

13 EXAMINATIONS: Practical = 70%; Theory = 40%

185

List of Materials and Equipment Building Science

List of Equipment

1. Compression Testing Machine

2. Vicat apparatus

3. Le Chateller Moulds

4. British Standard Sieves (to BS 410)

5. Measuring Cylinder

6. Standard Hardened Steel Test Cylinder

7. Cube Moulds

8. Air-meter

9. Compacting Factor Apparatus

10. Slump Test Apparatus

11. Brogues Mould

12. Shurys Test Apparatus

13. Vee-Bee Apparatus.

14. CBR Machine

15. Compaction Machine

16. Specific gravit

17. Attenberg Limit

18. Misture Content

19. Soil hydrometer

ENGINEERING DRAWING EQUIPMENT LIST

1. Drawing Board (size A2)

2. T-square (size 700m)

3. Set square (300-600 and 450 x 300)

4. Scale rule (metric)

5. Instrument set

6. Templates/French curves

7. Overhead projector

8. Film strip and sine projector

9. Chalk board with track machine

10. Models of solids

11. Transparences

12. Drawing pens (Repidographs)

13. Storing cabinets

14. Projector screen

186

List of Participants

UNESCO-NIGERIA PROJECT IN SUPPORT OF REVITALISATION OF TECHNICAL AND

VOCATIONAL EDUCATION(TVE) IN NIGERIA

PROJECT TEAM MEMBERS

S/No. NAME DESIGNATION

1 Engr. Dr. Nuru A. Yakubu National Project Coordinator & Executive Secretary, NBTE

2 Dr. M.S. Abubakar Technical Coordinator

3 Engr. S.C. Odumah Curriculum Development Coordinator

4 Mr. B.N. Niriyus Staff Development Coordinator

5 Engr. Dr. S.N. Mumah Information & Communication Technology Coordinator

6 Isa Alhaji Sulaimanu Project Accountant

7 Mal. A.D.K. Muhammad Project Officer

187

S/NO NAME ADDRESS

1 Ibidapo Olabode NABTEB,

P. M. B. 1747, Benin City.

2 Moses A. Ogunbiyi C/o The Nigerian Institute of Building

Ikeja, Lagos

3 Adeleye Asamu Saminu Government Technical College

Ijebu Ode

4 Amaechi Prince U. Government Technical College

P. O. Box 2853, Owerri

5 Babatunde B. A. Government Technical College

Ado- Soba, Festac

6 Adamu B. N. Government Technical College,

Malali, Kaduna

7 E. B. Umo-Otong NBTE, Kaduna

8 Engr. J. O. Falade NBTE, Kaduna

blocklaying, bricklaying and concreting -...

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