WP 8Life cycle assessment of cost,

sustainability, safety and aesthetics

Participants: CTU | DTI | ELC | PD | SUP | GS | DTP| DRA | UNC | GR

WP8: Life cycle assesment of cost, sustainability, safety and aesthetics

Research Partners: DTI, CTU

Industrial Partners: PD, SUP, GS, DTP, GR, DRA, UNC, ELC

Workpackage Objective: To assess the TailorCrete concept in the life cycle regarding cost, sustainability, safety and aesthetics. The main objective is to compare TailorCrete to the traditional concept.

Tasks

Task 8.1: Life cycle costing DRA 60% Task 8.2: Life cycle environmental impacts DTI 60% Task 8.3: Safety in the life cycle CTU 75% Task 8.4: Aesthetics UNI 50% Task 8.5: Overall assessment CTU 20%

Deliverables

D8.1: Results of life cycle cost analysis M42 Not Complete D8.2: Results of life cycle screening regarding sustainabilityM42 Not Complete D8.3: Results of assessment of safety M42 Not Complete D8.4: Results of aesthetic assessment M45 Not Complete D8.5: Summary report on life cycle assessment M48 Not Complete

WP8 Structure and Progress Update

Life‐Cycle phases 

– Pre‐construction phase – design– Raw material production– Construction– Operation and use, maintenance– Demolition

WP8: Life cycle assesment of cost, sustainability, safety and aesthetics

Construction

Form

wor

k

WP8: Life cycle assesment of cost, sustainability, safety and aesthetics

• Such evaluation is a very complex task– Some tasks need not to be analyzed, as their

impacts/costs are approximately the same in both approaches (design, demolition)

– The focus is on differences between traditional and TailorCrete approaches

WP8: Life cycle assesment of cost, sustainability, safety and aesthetics

Task  objective: To compare costs between the traditional process and the TC for a specific construction project.

Representative structure (ML 8.1)Benidorm Wall Particular section Extrapolated drawings

T8.1 Life Cycle Cost

• Traditional and TC processes: construction phase decomposition • Identification of partners to provide data.• Continuous process to gather information of the construction process in

terms of costs, resources, etc. • Identification of tasks which do not need cost analyzed since they cost the

same (or with negligible differences) both in the traditional process or in the TC process.

T8.1 Life Cycle Cost

Resources needed for a 50m section of the wall

Nº OPERATIONS Unit measured

Unit number

Minimum work team

min.crane/unit

min.man/ unit

Total min.cran

e

Total min.ma

n

1

DEM

OLD

ING

Remove shoring and tirants tirants 340 2 2,6 898

2 Remove formwork blocking systemsunion 160 1 2,0 320

3 Remove compensations module 40 2 24,0 960

4 Modules separation module 40 2 20,0 40,0 800 1.600

5 Negatives recovery negative 0 2 24,0 0

6Cleaning and release agent application on formworks m2 450 1 1,0 432

7

FORM

WO

RK

PLAC

EMEN

T Modules layout def inition module 40 2 28,0 1.120

8Placement of outer side of formwork (i/shoring) module 20 3 40,0 120,0 800 2.400

9Layout def inition, negatives placement negative 0 2 60,0 0

10

REIN

FORC

EMEN

T PL

ACEM

ENT Supply and placement of

reinforcement panels panel 110 3 8,0 24,0 880 2.640

11Assembly of reinforcement panels and overlappings panel 110 1 1,5 165

12

FORM

WO

RK P

LACE

MEN

T AN

D CA

STIN

G

Placement of formwork inner side module 20 3 35,0 105,0 700 2.100

13 Compensation pieces placement module 40 2 20,0 800

14 Tirants placing and assembly tirants 340 2 3,0 1.020

15 Tirants adjustment tirants 340 2 2,0 680

16 Modules exact placing and levelling module 40 3 75,0 3.000

17 Concrete level marking module 40 2 20,0 800

18 Supplies ( miscellaneous) viajes 10 3 1,5 4,5 15 45

19 Casting (40,5 m3) m3 41 5 15,0 608

20 Topographyc check module 40 3 45,0 1.800Total formwork 1.515 18.582Total reinforcement 800 2.805

TOTAL GENERAL 2.315 21.387

T8.1 Life Cycle Cost

• Traditional and TC processes: construction phase decomposition • Identification of partners to provide data.• Continuous process to gather information of the construction process in

terms of costs, resources, etc. • Identification of tasks which do not need cost analyzed since they cost the

same (or with negligible differences) both in the traditional process or in the TC process.

Task  objective: To asses sustainability of TailorCrete concept, evaluate product’s energy use, and environmental carbon , water, and waste footprints.

• The same representative considered: Section of Benidorm wall • Prepared extensive LCA data sheet for the partners to fill out.• Continuous process to gather information of the construction process of the Benidorm

Wall (CAD files, Costs, Materials, Resources and construction processes followed).• GaBi software evaluated, facilitating investigation and comparison of environmental

impacts of a process, material or building work. • LCA Database with the cost, energy and environmental impact data

T8.2 Life Cycle Analysis

Task  objective: To make sure that TC concept will not worsen existing safety concerns. Existing safety issues should be improved, if possible.

• Developed material data sheets and safety questionnaire• The open literature and project materials reviewed (DLs, Reports)• Currently data analysis under progress to identify possible safety issues and

to propose possible solutions.

T8.3 Safety in the life cycle

• Material data sheet• Document with information on the potential hazards (health, fire,

reactivity, and environmental) of any material• Including description on composition, handling , and work safety of the

product

• Example: Wax• Not a new material, but its processing requires melting -> possible

risk for workers -> protective gear recommended.

The electronic version of this questionnaire can be downloaded from http://mech.fsv.cvut.cz/TC

T8.3 Safety in the life cycle

• Safety questionnaire– Structured according to individual life cycle phases – Focused on identification of new safety issues during individual phases. – Recommendations to how possible or existing safety problems can be eliminated.– Collected results (6 partners contributed)

Example: Fibers – Service life: -> improvement of safety (improved ductility - earthquakes, polypropylene fibers

- spalling prevention)– Production: need for quality control (dosage) -> solved for steel fibers, still open for

polypropylene

T8.3 Safety in the life cycle

The electronic version of this questionnaire can be downloaded from http://mech.fsv.cvut.cz/TC

Task objective: To assess the aesthetic factors (smoothness, texture, surface deterioration) using accelerated tests• Accelerated testing allows to simulate in a short period time the expected performance

of cement specimens exposed to different environmental conditions.• 11 samples for accelerated aesthetic evaluation have been received from project

partners• Concrete tiles of eleven different conventional or SCC recipes have been casted

following the same procedure in different laboratories with similar hydration time• Carried out colour measurements during a preliminary conditioning period

T8.4 Aesthetic evaluation

Due to delays in delivery of some samples, the completion of the accelerated ageing tests will have been postponed 2 months

• A draft of DL8.4 will be prepared for 31st of January 2013 with the preliminary results and conclusions from the accelerated ageing tests.

• The final DL8.4 will be submitted by 1st of April 2013 and uploaded to ECAS.

T8.4 Accelerated testing

WP8 Future Planning

Tasks 8.1 and 8.2: (LCA+LCC)

1. Considered postponement of DL8.1 and DL8.2 to perform LCA and LCC directly on demonstrator project.

1. Higher impact to project2. Results more valuable and solid

Task 8.3: (Safety)• Final communication with partners to propose solution on how to improve

identified issues• DL 8.3 will be on time.

Task 8.4: (Aesthetics evaluation)• Accelerated testing of received samples and their evaluation in progress.