effective use of waste marble powder as partial 1

EFFECTIVE USE OF WASTE MARBLE POWDER AS PARTIAL REPLACEMENT OF CONCRETE

GUIDED BY :- ASST PROF ANUSAYA SAHOO ASST PROF ANUSMITA MALLICK

SUBMITTED BY:- GROUP-4

• INTRODUCTION• LITERATURE REVIEWS• PROPERTIES,MATERIAL AND METHOD• MIX DESIGN• CONCLUSION • DISCUSION• REFERANCE• CODE REQUIRED

CONTENTS

INTRODUCTION• Marble is a metamorphic rock resulting from the

transformation of a pure lime stone . It is white because the lime stone is composed of solely of “Calcite”(100% CaCO3) .• A large quantity of powder is generated during the

cutting process . The result is that the mass of marble waste which is 20% of total marble quarried .• Leaving marble dust to environment directly impact

on environment & humans . Therefore utilization of marble dust in various industrial sector especially the construction would help to protect the environment . Hence the reuse of marble dust has been emphasized .

• Marble powder can be used as an admixture in concrete , so that strength of the concrete can be increased . Marble dust is mixed with concrete , cement or synthetic resins to make counters , building stones , sculptures , floors & many other of object .• In the addition to this due to fineness of the marble powder, it will easily mix with aggregates so that perfect bonding is possible .• Marble powder will fill the voids present in concrete & will give sufficient compressive strength when compared with the ordinary concrete .

OBJECTIVE OF OUR STUDY • To decrease the construction cost of rigid pavement by using industrial wastes as marble slurry powder.

• To solve the problem of the waste generated by the natural stone industry.

• To partially substitute marble slurry powder with cement

AUTHER:-Ali Ergun 17th august 2010• The concrete containing 5% Waste marble powder as partial

replacement by weight for cement with a super plasticizing admixture had higher compressive strength than that of the control concrete specimens. • 5% waste marble powder replacement improved the mechanical

properties of concretes. • The positive effect that causes the increase in compressive strength

stems from filler properties of waste marble powder as in limestone powder and low water demand caused by adding super plasticizing admixture.

LITERATURE REVIEWS

AUTHER- Giacomo Morconi and Valeria corilaldesi (11th Sept. 2009)

• In terms of mechanical performance, 10% substitution of sand by the marble powder in the presence of a super plasticizer in admixture provided maximum compressive strength at the same workability level, comparable to that of the reference mixture after 28 days of curing.

• Moreover, an even more positive effect of marble powder is evident at early ages, due to its filler ability

HANIFI BINICI• A Study has been conducted by Hanifi Binici et

al (2007) found that marble dust concrete has higher compressive strength than that of the corresponding lime stone dust concrete having equal w/c and mix proportion.

• The results indicated that the Marble dust concrete would probably have lower water permeability than the lime stone concrete.

• Marble waste when used in concrete increases the amount of water required to produce given slump, this may be due to increased surface area in dust compared to sand.

• The overall workability value of marble dust concrete is less compared to conventional concrete.

PROPERTIES OF CONCRETE

• The main properties of concrete is plasticity & hardness . Plasticity of concrete means , it should be workable & free from segregation & bleeding . Hardness of concrete means , it should be strong , durable & impermeable . • The another most important property of concrete is compressive strength . Concrete is generally graded according to its compressive strength . In the designation of concrete mix , the “M” refers to the mix & subscript no. denotes the compressive strength at 28 days of curing . Example :- M5 , M10 , M15 , M20 ,M25, M30 etc…

MATERIAL USED

• Concrete is a composite material . It constituent of coarse aggregate , fine aggregate , binding material & water .• Material used :-1. coarse aggregate 2. fine aggregate 3. cement 4. marble dust

CEMENT

• Cement is a binding material which has both adhesive & cohesive properties which devlope bonding .• It gives strength to masonry . • It easily workable .• It offers good resistance to moisture .• It posses good plasticity & hardness easily .

COARSE AGGREGATE• Coarse aggregates are particles grater than

4.75 mm , but generally ranges between 9.5mm to 37.5mm diameter . They can either be from primary or secondary .

• Primary aggregates are either land or marine won . Secondary aggregates are materials which are by products of extractive operations & are derived from a very wide range of materials .

• It gives strength to concrete .

FINE AGGREGATE & MARBLE DUST

• Sand are formed by wearing of rock due to weathering . It is the particle ranges between 150 microns to 4.75mm .• Sand is used in concrete to prevent

shrinkage & cracking of mortar in setting .• Marble powder is collected dressing

& cutting . It was initially in wet form (i.e. Slurry) , after that it is dried by exposing in the sun & finally sieved by 90 micron sieve before mixing .• It is also used as binding material

& also act as admixture to the mix , which gives more strength to concrete mix .

TESTS CARRIED OUT

• SPECIFIC GRAVITY :- It is the ratio of the density of a substance to the density of water at a specific temperature .

• INITIAL AND FINAL SETTING TIME :- Initial setting time test gives the time required to delay the process of hydration . Final setting time is the time when the cement completely losses its plasticity .• CONSISTENCY TEST :- The test is determined the percentage of water required for preparing cement paste for other tests .

• FINENESS MODULUS :- Fineness modulus is generally used to get an idea of how coarse & fine aggregate is . Greater fineness improves cohesiveness in concrete mix .

• WATER ABSORPTION :- Water absorption test gives a general knowledge about how much water absorbed by coarse aggregate & fine aggregate .

• SLUMP TEST :- It is used to check the correct amount of water added to the mix ( consistency of mix) . It is three types true slump , shear slump & collapse slump.

MIX DESIGN 

The process of selecting suitable ingredients of concrete and determining their relative amounts with the objective of producing a concrete of the required, strength, durability and workability as economically as possible, is termed the concrete mix design. TYPES OF MIXES: NOMINAL MIXES STANDARD MIXES DESIGNED MIXES

FACTORS AFFECTIVE THE CHOICE OF MIX PROPORTIONS

• COMPRESSIVE STRENGTH• WORKABILITY• DURABILITY• MAXIMUM NOMINAL SIZE OF AGGREGATE• GRADING AND TYPE OF AGGREGATE• QUALITY CONTROL• MIX PROPORTIONS AND DESIGNATIONS

MIX CALCULATION:MIX DESIGN FOR M20 GRADE CONCRETE USING RECYCLED AGGREGATE:

STIPULATIONS FOR MIXED PROPORTIONING: Grade designation : M25 Type of cement : PSC Maximum nominal size of aggregate : 20mm Minimum cement content : 300 kg/m3 Maximum water-cement ratio : 0.5 Workability : 80 mm slump

Exposure condition : Moderate Degree of supervision : Good Type of aggregate : Crushed angular

aggregate Maximum cement content : 450 kg/m3

TEST DATA FOR MATERIALS:

Cement used : PSC( 53 grade conforming to IS8112 )

Chemical admixture :Not added

Specific gravity of

Coarse aggregate : 2.80

Fine aggregate : 2.73

Marble dust : 2.655

Cement : 2.87 Water absorption

Coarse aggregate :1%

Fine aggregate :0.5%

TAGET STRENGTH FOR MIX PROPORTIONING: f’ck = fck +ks k = 1.65( corresponding to 5% of detention )

s = standard deviationSELECTION OF WATER CEMENT RATIO: Take value of w/c ratio corresponding to f’ck from graph given in IS code SP23.SELECTION OF WATER CONTENT: Take maximum water content from Table-2 of IS 10262 : 2009 , corresponding to nominal size of coarse aggregate and slump 25-50 mm

SP23 W/C RATIOIS 1O262 WATER

CONTENT

CALCULATION OF CEMENT CONTENT:

w/c ratio = ( wt. of cement) / (wt. of water)

=> wt. of cement = ?

cement content > maximum cement content .

PROPORTION OF VOLUME OF COARSE AGGREGATE AND FINE AGGREGATE CONTENT:

Coarse aggregates proportion to total aggregate is taken from Table-3 of IS code 10262 for w/c ratio 0.5 .

IS 10262 PROPERTION OF

VOLUME OF AGGREGATE

DISCUSSION

• By adding marble powder it can reduced the emission of carbon dioxide in construction processes . According to the resources , it shows that replacing of cement with marble dust upto a limit reduces the slump of concrete mixes , but when it replace with sand upto limit , it enhances the slump of the concrete mix .• According to the earlier experimental studies it reviewed that by adding waste marble powder it increases the unit weight of the concrete due to the high specific gravity of waste marble powder. In point of fact, it played a evident role in the hydration process. By the contribution of marble powder in cement it enhances the mechanical and physical properties but porosity of the concrete decreased.

CONCLUSION

• The replacement of cement with waste marble powder attains maximum compressive & tensile strength . • To minimize the costs for construction with usage of marble powder which is freely or cheaply available .• To realm of saving environmental pollution by cement production , being our main objective as civil engineering .

REFERENCES P.A. Shirulea, AtaurRahmanb, Rakesh D. Gupta, “Partial Replacement Of

Cement With Marble Dust Powder”, International Journal of Advanced Engineering Research and Studies E-ISSN2249–8974, IJAERS/ Vol. I/ Issue III/April-June, 2012/ 175-177.

Ahmed N. Bdour and Mohammad S. Al- Juhani, ”Utilization Of Waste

Marble Powder In Cement Industry”, December 2011,Associate Professor, Civil Engineering Department, College of Engineering, University of Tabuk, Saudi Arabia Corresponding Author Dean, College of Engineering, University of Tabuk, Saudi Arabia.

V.M.shelke, Prof. P.Y.pawde Dr. R.R. shrivastava “Effect Of Marble Powder

With And Without Silica Fume On Mechanical Properties Of Concrete”

Prof -Civil Engg. Dept. Prof-Chemistry Dept. G. H. Raisoni College of Engineering & Technology, NAGPUR, (India) IOSR Journal of Mechanical and Civil Engineering.

CODES REQUIRED IS-383-Indian Standard (1970),”Method For Testing of

Aggregates”. IS 9013 – Indian standard (1978),”Method of Test for

Compressive Strength”. IS 9399 – Indian standard (1979),”Method of test for flexural

strength”. “Concrete Technology” Theory and practice By MS. Shetty

Concrete Technology:- M. L. Gambhir IS: 456 – 2000 “Plain And Reinforced Concrete Code Of

Practice”. IS: 383 – 1970 “Specification For Coarse And Fine Aggregates

From Natural Sources For Concrete. [11] IS: 10262 – 1982 Concrete Mix Design.