Flexural behavior of steel fiber reinforced concrete beams

Concrete is good in compression but week in tension that is, concrete is a brittle material. So, in order to improve the tensile properties, short fibers are used. Effects of steel fibers on flexural performance of reinforced concrete (RC) beams are the main objectives of this study. The hooked-end...

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Main Author:	Pesaran Behbahani, Hamid
Format:	Thesis
Language:	English
Published:	2010
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/11578/6/HamidPesaranBehbahaniMFKA2010.pdf
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spelling	my-utm-ep.115782017-09-28T03:19:00Z Flexural behavior of steel fiber reinforced concrete beams 2010-04 Pesaran Behbahani, Hamid TA Engineering (General). Civil engineering (General) Concrete is good in compression but week in tension that is, concrete is a brittle material. So, in order to improve the tensile properties, short fibers are used. Effects of steel fibers on flexural performance of reinforced concrete (RC) beams are the main objectives of this study. The hooked-end steel fibers with the dimensions of 0.75 mm in diameter, 50 mm in length and with the aspect ratio of 67 were used in this study. Initially the optimum percentage addition of steel fibers in concrete was determined. In order to accomplish this task, several concrete prisms and cubes with the same mix proportioning of concrete and different volume fractions of steel fiber (0.5 %, 1%, 1.5 %, and 2 %) were prepared. Then, by determining the flexural and compressive strength of samples, it was concluded that the optimum volume fraction was 1 % ( 78.5???? ??3). In the next step,the flexural behavior of RC beams with the addition of steel fibers with lower and higher compressive strength of concrete was considered. The study was conducted on two types of concrete with different grades of 30 and 50. For each grade of concrete, two beams were cast which steel fiber was included in one of the beams, with the addition of 1% volume fraction, and the other beam was considered as control beam. The overall dimensions of the beams were 170 mm in height, 120 mm in width, and 2400 mm in length. The beams were tested under four-point loading test. The results showed that addition of steel fibers in concrete increases the first crackingload, ultimate load, stiffness and ductility of the concrete beams. Furthermore, the addition of steel fibers has more effect on the properties of RC beams with higher concrete grade compared to lower grade. 2010-04 Thesis http://eprints.utm.my/id/eprint/11578/ http://eprints.utm.my/id/eprint/11578/6/HamidPesaranBehbahaniMFKA2010.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) Pesaran Behbahani, Hamid Flexural behavior of steel fiber reinforced concrete beams
description	Concrete is good in compression but week in tension that is, concrete is a brittle material. So, in order to improve the tensile properties, short fibers are used. Effects of steel fibers on flexural performance of reinforced concrete (RC) beams are the main objectives of this study. The hooked-end steel fibers with the dimensions of 0.75 mm in diameter, 50 mm in length and with the aspect ratio of 67 were used in this study. Initially the optimum percentage addition of steel fibers in concrete was determined. In order to accomplish this task, several concrete prisms and cubes with the same mix proportioning of concrete and different volume fractions of steel fiber (0.5 %, 1%, 1.5 %, and 2 %) were prepared. Then, by determining the flexural and compressive strength of samples, it was concluded that the optimum volume fraction was 1 % ( 78.5???? ??3). In the next step,the flexural behavior of RC beams with the addition of steel fibers with lower and higher compressive strength of concrete was considered. The study was conducted on two types of concrete with different grades of 30 and 50. For each grade of concrete, two beams were cast which steel fiber was included in one of the beams, with the addition of 1% volume fraction, and the other beam was considered as control beam. The overall dimensions of the beams were 170 mm in height, 120 mm in width, and 2400 mm in length. The beams were tested under four-point loading test. The results showed that addition of steel fibers in concrete increases the first crackingload, ultimate load, stiffness and ductility of the concrete beams. Furthermore, the addition of steel fibers has more effect on the properties of RC beams with higher concrete grade compared to lower grade.
format	Thesis
qualification_level	Master's degree
author	Pesaran Behbahani, Hamid
author_facet	Pesaran Behbahani, Hamid
author_sort	Pesaran Behbahani, Hamid
title	Flexural behavior of steel fiber reinforced concrete beams
title_short	Flexural behavior of steel fiber reinforced concrete beams
title_full	Flexural behavior of steel fiber reinforced concrete beams
title_fullStr	Flexural behavior of steel fiber reinforced concrete beams
title_full_unstemmed	Flexural behavior of steel fiber reinforced concrete beams
title_sort	flexural behavior of steel fiber reinforced concrete beams
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2010
url	http://eprints.utm.my/id/eprint/11578/6/HamidPesaranBehbahaniMFKA2010.pdf
_version_	1747814872628854784

Flexural behavior of steel fiber reinforced concrete beams

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