Properties of glass fiber reinforced self compacting concrete

Self Compacting Concrete (SCC) is able to flow under its own weight and completely fill the formwork, even in the presence of congested reinforcement, without any compaction, while maintaining homogeneity of the concrete. Majority of concrete cast rely on compaction to produce good quality concrete....

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Main Author:	Wong, Choon Siang
Format:	Thesis
Language:	English
Published:	2012
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/29866/5/WongChoonSiangMFKA2012.pdf
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spelling	my-utm-ep.298662018-05-27T07:07:59Z Properties of glass fiber reinforced self compacting concrete 2012-01 Wong, Choon Siang TA Engineering (General). Civil engineering (General) Self Compacting Concrete (SCC) is able to flow under its own weight and completely fill the formwork, even in the presence of congested reinforcement, without any compaction, while maintaining homogeneity of the concrete. Majority of concrete cast rely on compaction to produce good quality concrete. However, compaction is difficult to be done in conditions where there are dense reinforcement and large casting area. Usage of SCC will overcome the difficult casting conditions and reduce manpower required. Addition of fibers will enhance the tensile and ductile behaviour of concrete with brittle nature. SCC was added with relatively short, discrete, and discontinuous glass fibers to produce Glass Fiber Reinforced Self Compacting Concrete (GFRSCC). The purpose of this study is to investigate the workability and mechanical properties of plain SCC and GFRSCC. Control concrete (NC), plain SCC, and GFRSCC samples were prepared. Water-cement ratio of 0.40 was used for all concrete mixes. The fiber and brand of superplasticizer used were alkaline-resistance glass fiber and Rheobuild 1100, respectively. Three fiber contents of 0.5%, 1.0%, and 1.5% by volume of concrete were utilised in this study. The laboratory testing included slump flow test, L-Box test, sieve segregation resistance test, density test, ultrasonic pulse velocity (UPV) test, compressive strength test, splitting tensile strength test, and flexural strength test. The dosage of superplasticizer required increased as fiber content increased. Plain SCC and GFRSCC were highly workable than NC. The experimental results show that plain SCC exhibited higher compressive strength than NC and GFRSCC. The splitting tensile strength of NC was higher than plain SCC and GFRSCC due to negative effect of superplasticizer added. The flexural strength of NC was slightly higher than plain SCC. All GFRSCC exhibited higher flexural strength than plain SCC. The optimum fiber content was 1.0% by volume of concrete. GFRSCC with 1.0% fiber content developed higher load at first crack and ultimate load than NC and plain SCC slabs. 2012-01 Thesis http://eprints.utm.my/id/eprint/29866/ http://eprints.utm.my/id/eprint/29866/5/WongChoonSiangMFKA2012.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Wong, Choon Siang Properties of glass fiber reinforced self compacting concrete
description	Self Compacting Concrete (SCC) is able to flow under its own weight and completely fill the formwork, even in the presence of congested reinforcement, without any compaction, while maintaining homogeneity of the concrete. Majority of concrete cast rely on compaction to produce good quality concrete. However, compaction is difficult to be done in conditions where there are dense reinforcement and large casting area. Usage of SCC will overcome the difficult casting conditions and reduce manpower required. Addition of fibers will enhance the tensile and ductile behaviour of concrete with brittle nature. SCC was added with relatively short, discrete, and discontinuous glass fibers to produce Glass Fiber Reinforced Self Compacting Concrete (GFRSCC). The purpose of this study is to investigate the workability and mechanical properties of plain SCC and GFRSCC. Control concrete (NC), plain SCC, and GFRSCC samples were prepared. Water-cement ratio of 0.40 was used for all concrete mixes. The fiber and brand of superplasticizer used were alkaline-resistance glass fiber and Rheobuild 1100, respectively. Three fiber contents of 0.5%, 1.0%, and 1.5% by volume of concrete were utilised in this study. The laboratory testing included slump flow test, L-Box test, sieve segregation resistance test, density test, ultrasonic pulse velocity (UPV) test, compressive strength test, splitting tensile strength test, and flexural strength test. The dosage of superplasticizer required increased as fiber content increased. Plain SCC and GFRSCC were highly workable than NC. The experimental results show that plain SCC exhibited higher compressive strength than NC and GFRSCC. The splitting tensile strength of NC was higher than plain SCC and GFRSCC due to negative effect of superplasticizer added. The flexural strength of NC was slightly higher than plain SCC. All GFRSCC exhibited higher flexural strength than plain SCC. The optimum fiber content was 1.0% by volume of concrete. GFRSCC with 1.0% fiber content developed higher load at first crack and ultimate load than NC and plain SCC slabs.
format	Thesis
qualification_level	Master's degree
author	Wong, Choon Siang
author_facet	Wong, Choon Siang
author_sort	Wong, Choon Siang
title	Properties of glass fiber reinforced self compacting concrete
title_short	Properties of glass fiber reinforced self compacting concrete
title_full	Properties of glass fiber reinforced self compacting concrete
title_fullStr	Properties of glass fiber reinforced self compacting concrete
title_full_unstemmed	Properties of glass fiber reinforced self compacting concrete
title_sort	properties of glass fiber reinforced self compacting concrete
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2012
url	http://eprints.utm.my/id/eprint/29866/5/WongChoonSiangMFKA2012.pdf
_version_	1747815706104168448

Properties of glass fiber reinforced self compacting concrete

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