FYP 1 - Proposal Defence

7/27/2019 FYP 1 - Proposal Defence

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FYP I – PROPOSALDEFENCE

Presented by:

Odu Paul Duku Erikole, (14115)

DEVELOPMENT OF FIBER REINFORCED SELF

CONSOLIDATING MICRO CONCRETE UTILIZING W

SV : Dr. Bashar

Examiner : Dr. Zahiraniza



ProjectBackground

LiteratureReview

Methodology

Conclusion

Q & ASession

References

Outline

Introduction

Objectives

Project Scope

Problem Statem

Significance of

Self-Compactin

Fiber Reinforce

Limed Water L

Residue (WLP)

Gantt Chart

Project Activitie

Key Milestones



Project Background - Introducti

Conventionalconcrete

low tensilestrength

lowresistanceto cracking

Requiresvibrators forcompaction

limitedductility

Cement,aggregatesand water

1.Prod

2. Inclu

reduce

3. Heal

Improved by fiberreinforcement

(use of fiber

reinforced

concrete – FRC)

S

s

c

Aggregate is

depleting



Project Background – Introduc

• FRC – a conventional concrete to which discontinuous discrete fibers during mixing (Kosmatka & panarese, 1994).

• Murthy et al (2012) defined self-compacting concrete (SCC) as an innoconcrete that does not require vibration for placing and compaction bflow under its own weight, completely filling formwork and achievingcompaction, even in the presence of congested reinforcement

• Felekoglu (2007), defined micro concrete (MC) as a high performance

based material proportioned with micro-aggregates whose particle sifrom about 0.5 mm to less than 1micron

• WLP - Limed Water Leach Purification residue from Lynas CorporatioAustralian based mining company having rare earth processing plant,Lynas Advanced Materials Plant (LAMP) in Gebeng industrial estate inMalaysia



Project objectives

i. To develop fiber reinforced self-consolidating micro-concrete utilizmicro-aggregates

ii. To determine the physical, mechanical and durability properties of

developed fiber reinforced self-consolidating micro-concrete utilizi



Project scope

•

Mixingi. Mix design

ii. Material ordering and equipment booking

iii. Mixing without fiber (control mix), with steel fiber and with PVA

• Testing

i. Testing for requirement of SCC (fresh properties)ii. Testing for mechanical and durability properties

• Analysis of test results

i. Comparison of the test results for the three mix sets



Problem statement

Problem identification

•

Plain concrete possesses:i. Low tensile strength

ii. Limited ductility

iii. Little resistance to cracking – drying shrinkage

iv. Uses aggregates – non-renewable material

v. Require vibrators- produces noises, leads to bleeding & inclusio

- reducing concrete durability

• WLP

i. is a waste, needs to be dump in landfills

ii. Landfills destroy wildlife habitats, reduce agricultural productiv



Significance of the project

• Using SCC (Murthy et al, 2012)

a. increases productivity levels –short construction time

b. lower concrete construction costs –less labor and equipment

c. improves working environment –reduces noise

d. improves in-situ concreting in congested structural elements

e. improved surface quality

• Use of FRC

a. increases flexural strength, tensile strength, fatigue strength antoughness (Wafa,1990).

b. Increase durability of the concrete



Significance of the project

• Use of WLP

a. reduce landfill usage – conserves land

b. environmentally friendly method – WLP is a waste

c. more economical – even waste producers hate waste

d. Particle size < 600 micron, improves the particle packing densitycementitious system, enhances the rheological and mechanicaand durability of resulting fiber reinforced self-compacting micr



Literature review

Self-Compacting Concrete SCC

a. Concept first initiated in japan in the mid-1980s to offset a growingof skilled labor (Choo, 2003)

b. Characteristics of fresh SCC

According to Koehler & Fowle

• Filling ability - the ability of concrete to flow under its own mass acompletely fill formwork.

• Passing ability - the ability of concrete to flow through confined cosuch as the narrow openings between reinforcing bars.

• Segregation resistance - the ability of concrete to remain uniform composition during placement and until setting



Hardened Properties of SCC

• Murthy et al (2012), hardened SCC is dense, homogeneous and has thengineering properties and durability as traditional vibrated concrete.

• Choo (2003), the compressive strength of SCC is usually higher than foconventional concrete due to the lower water/binder ratios associate



Fiber reinforced concrete (FRC)

Concrete to which discontinuous discrete fibers are added during mix

Properties of FRC affected by

i. the fiber type,

ii. fiber geometry,

iii. fiber content,iv. fiber orientation and distribution (Shetty, 2001).



Properties of hardened FRC

Typical stress-strain curves for fibe

Failure mechanism and the effect of fibers

Control crack widthsIncrease the toughn

WLP i t



WLP as micro aggregate.

LIMED Solid Waste generation (Lee, Waste type Tones per annum (1st

year)

tones per annum after

2nd year onwards

Volume

FGD- Flue gas

Desulphurization

Residue

27,900 55,800 162,600

NUF- Neutralized

Underflow Residue

85,300 170,600 91,600

WLP- Water Leach

Purification residue

32,000 64,000 478,800

Total 145,200 290,400 1392,70



WLP as micro aggregate

•

WLP is one of the 3 solid wastes produced by Lynas Coorper• WLP is disposed in landfills

• Landfills destroys wildlife habitats and takes away valuableagricultural land

• Using WLP in concrete conserves wildlife habitats and agricu

land• WLP is very fine, rheological and mechanical properties and

of concrete is expected to improve



Methodo

Preparation of

constituent materials

Mixing

Testing for fresh

concrete properties

Analysis of results of

hardened concrete

properties

Testing for hardened

concrete properties

Fulfills

requirements

for SCC?

No Yes

Start



Gant chat

No. Activity / Week 1 2 3 4 5 6 7 8 9 10

1 Selection of Project Topic

2 Preliminary Research Work

3 Submission of Extended Proposal Defence

4 Proposal Defence

5 Project work continues

6 Submission of Interim Draft Report

7 Submission of Interim Report

Project Activities Submission Dateline Mid



Project activities

Sieving to particle size of < 600 micro

T i l i ti f lf lid ti i



Trial mix proportions for self-consolidating micro concrutilizing WLP

Mix

ID

w/b

ratio

s/b

ratio

SP/b

(%)

WLP

<600µm

(kg/m3)

PC

(kg/m3)

F. Ash

(kg/m3)

MIRHA

(kg/m3)

Sand

300µm

(kg/m3)

Water

(kg/m3)

SF

(kg/

M1 0.27 0.36 0.25 400 381 837 - 443 329 -

M2 0.27 0.36 0.25 400 381 - 837 443 329 -

M3 0.27 0.36 0.25 400 381 837 443 329 26

M4 0.27 0.36 0.25 400 381 - 837 443 329 -

M5 0.27 0.36 0.25 400 381 837 387 523 329 26

M6 0.27 0.36 0.25 400 381 387 837 523 329 -

es or res proper es-accep ance cr er a or



es or res proper es-accep ance cr er a or (Schutter, 2005).

Test Method Property Units

Application T

Lab (Mix

design)

Field (QC)

Slump-flow by Abrams cone Filling ability mm

T50cm slump flow Filling ability sec

J-ring Passing ability Mm

V-funnel Filling ability Sec

V-funnel at T5min Segregation resistance Sec

L-box Passing ability (h2/h1)

U-box Passing ability (h2-h1) mm

Fill-box Passing ability %

GTM screen stability test Segregation resistance %

Orimet Filling ability sec



Test for Hardened properties

Mechanical Properties Durability Properties

Compressive

Strength

Development

Tensile

Strength test

Leachate

Test

Permeability Porosity

Test at 7 and28 days, 3

samples for

each age

Test at 7 and28 days, 3

samples for

each age

3 samples permix at 28 days

3 samples permix at 28 days

3 samples pemix at 28 day



Key milestone

Date Activity

14/06/2013

Attend Laboratory safety briefing 21/06/2013 Check the availability of required materials and equipment

28/06/2013 Prepare trial mix design

05/07/2013 Sieving WLP to < 600 micron particle size

12/07/2013 Sieving WLP to < 600 micron particle size

19/07/2013 Trial mixing

Testing properties of fresh mix

20/07/2013 Remove cube

26/07/2013 Testing compressive strength of trial mix at 7 days

Testing tensile strength of trial mix at 7 days

15/08/2013 Testing mechanical properties of trial mix at 28 days

Testing durability properties of trial mix at 28 days

Mixing, testing fresh and hardened properties of fiber reinforced self-consolidating micro

analysis, discussion and conclusion to be continued in FYP 2



Conclusion• Problem statement

• several problems of conventional concrete

• depleting natural resources - aggregates

• reduction of productive land, destruction of wildlife habitats

• Project objective

i. To develop fiber reinforced self-consolidating micro-concrete utilizmicro-aggregates

ii. To determine the physical, mechanical and durability properties ofdeveloped fiber reinforced self-consolidating micro-concrete utilizi

• Project scope

• Mixing, testing, analysis of results, conclusion and recommendati

REFERENCES



REFERENCES1. M. L. Gambhir (2004). Concrete technology. Third Ed. Tata McGraw-Hill Publishing Company limited, New Delhi

2. B.S. Choo, (2003). Advanced Concrete Technology Processes. Elsevier Butterworth Heinemann, Elsevier’s Science and technology Rights

3. Murthy et al (1012). Mix Design Procedure for Self Compacting Concrete. IOSR Journal of Engineering (IOSRJEN). Vol. 2, Iss. 9., PP 33-41

4. M. S. Shetty (2001). Concrete technology. Theory and Practice, fifth ed. Chand & Company Ltd, 3761, Ram Nagar, New Delhi-110055

5. S. H. Kosmatka & W. C. Panarese (1994). Design and Control of Concrete Mixtures. Third Ed, Portland cement Association, 5420 Old Orch60077-1083

6. BA MA. B. Lee (2012). Rare Earth and Radioactive Waste. A Preliminary Waste Stream Assessment of the Lynas Advanced Materials PlanToxics Network

7. B. Felekoglu, (2007). Effects of PSD and surface morphology of micro-aggregates on admixture requirement and mechanical performancCement & Concrete Composites Vol. 29, pp. 481 –489

8. E. P. Koehler & D. W. Fowler, (2007). Inspection Manual for Self-Consolidating Concrete in Precast Members. Center for Transportation RTexas at Austin.

9. G. D. Schutter, (2005). Guidelines for Testing Fresh Self-Compacting Concrete. European Research Project: Measurement of Properties oConcrete. Acronym: TESTING-SCC

10. EFNARC (2002). Specification and Guidelines for Self-Compacting Concrete. EFNARC, Association House, 99 West Street, Farnham, Surre

11. S. Utsi, (2008). Performance Based Concrete Mix-Design. Aggregates and Micro Mortar Optimization Applied on Self-Compacting Concre

12. F. F. Wafa, (1990). Properties and Applications of Fiber reinforced Concrete. JKAU: Eng. Sci., Vol. 2, pp. 49-63

13. R. Deeb, A. Ghanbari & B.L. Karihaloo, (2012). Development of self-compacting high and ultra-high performance concretes with and withConcrete Composites, Vol. 34, pp.185 –190

14. Zhou et al, (2012). Improved fiber distribution and mechanical properties of engineered cementitious composites by adjusting the mixin& Concrete Composites, Vol. 34, pp. 342 –348

15. H. Upadhyay, P. Shah & E. George, (2011). Testing and Mix Design Method of Self-Compacting Concrete. National Conference on Recent Technology. Dept. of Structure Engg., BVM Engg. College, Gujarat Technological University Gujarat, India.

16. M. Skazlic, D. Bjegovi & M. Serdar, (2009). Utilization of high performance fiber-reinforced micro-concrete as a repair material. Taylor & F

17. Dr. M. C. Nataraja. Fiber Reinforced Concrete-Behaviour Properties and Application. Sri Jayachamarajendra College of engineering, Myso

18. fibre reinforced concrete, (2010). cement & concrete institute, midrand,



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