Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa

Flexural cracks are the most common problem in structural members which are subjected to bending moments. The introduction of steel fibres in concrete beam has been proposed as flexural cracks inhibitor. This research of steel fibres as flexural cracks inhibitor in concrete beam under static loadin...

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Main Author:	Musa, Mohd Yuasrizam
Format:	Thesis
Language:	English
Published:	2015
Subjects:	Flexure Concrete Reinforced concrete
Online Access:	http://ir.uitm.edu.my/id/eprint/15999/ http://ir.uitm.edu.my/id/eprint/15999/1/TM_MOHD%20YUASRIZAM%20MUSA%20EC%2015_5.PDF

id	uitm-15999
recordtype	eprints
spelling	uitm-159992017-01-03T07:42:39Z http://ir.uitm.edu.my/id/eprint/15999/ Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa Musa, Mohd Yuasrizam Flexure Concrete Reinforced concrete Flexural cracks are the most common problem in structural members which are subjected to bending moments. The introduction of steel fibres in concrete beam has been proposed as flexural cracks inhibitor. This research of steel fibres as flexural cracks inhibitor in concrete beam under static loading was conducted focusing on simply supported beam to determine the crack propagations in flexure by varying the steel fibre content placement in the beam. The 25 kg/m3 steel fibre was chosen for this study since the optimum concrete strength (fcu) is achieved with this steel fibre dosage. Seven sets of concrete beams of 150 mm x 250 mm x 1000 mm in size consists of three RC beams with full steel fibrous concrete (SFRC), three RC beams with steel fibre placed within tension zone of the beam, three RC beams with steel fibre placed at the half o f tension zone of the beam, two conventional RC beams (without steel fibre) as control sample, one unreinforced concrete beam with full steel fibre, one unreinforced concrete beam with steel fibre at tension zone only and one unreinforced concrete beam with steel fibre at half of tension zone. The variations in these seven sets of beams is intended to find the optimum steel fibrous concrete placements towards inhibiting flexural cracks in the beam. Experiment was conducted through three points bending test. The results showed that addition of steel fibre in conventional reinforced concrete beam increase the crack initiation load, yield load and ultimate load by 60%, 69% and 56% respectively. It also reduced the ratio of ultimate load over yield load by 46% and increased the ratio of ultimate load over theoretical load by 40%. The crack opening is reduced by 11 %. The crack failure of all the beams are classified as flexure crack and occurred in the mid third span. The addition of steel fibre in the conventional RC beam showed that it inhibits the flexural cracks. 2015 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/15999/1/TM_MOHD%20YUASRIZAM%20MUSA%20EC%2015_5.PDF Musa, Mohd Yuasrizam (2015) Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa. Masters thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Flexure Concrete Reinforced concrete
spellingShingle	Flexure Concrete Reinforced concrete Musa, Mohd Yuasrizam Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa
description	Flexural cracks are the most common problem in structural members which are subjected to bending moments. The introduction of steel fibres in concrete beam has been proposed as flexural cracks inhibitor. This research of steel fibres as flexural cracks inhibitor in concrete beam under static loading was conducted focusing on simply supported beam to determine the crack propagations in flexure by varying the steel fibre content placement in the beam. The 25 kg/m3 steel fibre was chosen for this study since the optimum concrete strength (fcu) is achieved with this steel fibre dosage. Seven sets of concrete beams of 150 mm x 250 mm x 1000 mm in size consists of three RC beams with full steel fibrous concrete (SFRC), three RC beams with steel fibre placed within tension zone of the beam, three RC beams with steel fibre placed at the half o f tension zone of the beam, two conventional RC beams (without steel fibre) as control sample, one unreinforced concrete beam with full steel fibre, one unreinforced concrete beam with steel fibre at tension zone only and one unreinforced concrete beam with steel fibre at half of tension zone. The variations in these seven sets of beams is intended to find the optimum steel fibrous concrete placements towards inhibiting flexural cracks in the beam. Experiment was conducted through three points bending test. The results showed that addition of steel fibre in conventional reinforced concrete beam increase the crack initiation load, yield load and ultimate load by 60%, 69% and 56% respectively. It also reduced the ratio of ultimate load over yield load by 46% and increased the ratio of ultimate load over theoretical load by 40%. The crack opening is reduced by 11 %. The crack failure of all the beams are classified as flexure crack and occurred in the mid third span. The addition of steel fibre in the conventional RC beam showed that it inhibits the flexural cracks.
format	Thesis
author	Musa, Mohd Yuasrizam
author_facet	Musa, Mohd Yuasrizam
author_sort	Musa, Mohd Yuasrizam
title	Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa
title_short	Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa
title_full	Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa
title_fullStr	Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa
title_full_unstemmed	Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa
title_sort	steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / mohd yuasrizam musa
publishDate	2015
url	http://ir.uitm.edu.my/id/eprint/15999/ http://ir.uitm.edu.my/id/eprint/15999/1/TM_MOHD%20YUASRIZAM%20MUSA%20EC%2015_5.PDF
first_indexed	2023-09-18T22:55:08Z
last_indexed	2023-09-18T22:55:08Z
_version_	1777417802947231744

Steel fibres as flexural cracks inhibitor in reinforced fibrous concrete beams under static loading / Mohd Yuasrizam Musa

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