Strengthening of RC beam externallly using bamboo fibre reinforced composite : a study on Gigantochloa Scortechinii

The use of fibre reinforced polymer as external strengthening in reinforced concrete (RC) structures which in need to carry out rehabilitation works. A study on Gigantochloa Scortechnii (Buluh Semantan) has been conducted to investigate the mechanical properties of the bamboo and its fibres to be us...

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Main Author: Lee, Mei Chin
Format: Undergraduates Project Papers
Language:English
Published: 2018
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Online Access:http://umpir.ump.edu.my/id/eprint/29495/1/Strengthening%20of%20rc%20beam%20externallly%20using%20bamboo%20fibre%20reinforced.pdf
http://umpir.ump.edu.my/id/eprint/29495/
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Institution: Universiti Malaysia Pahang
Language: English
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spelling my.ump.umpir.294952020-10-07T07:14:00Z http://umpir.ump.edu.my/id/eprint/29495/ Strengthening of RC beam externallly using bamboo fibre reinforced composite : a study on Gigantochloa Scortechinii Lee, Mei Chin TA Engineering (General). Civil engineering (General) The use of fibre reinforced polymer as external strengthening in reinforced concrete (RC) structures which in need to carry out rehabilitation works. A study on Gigantochloa Scortechnii (Buluh Semantan) has been conducted to investigate the mechanical properties of the bamboo and its fibres to be used in composite fabrication. In this research, the bamboos are obtained from Raub, Pahang. In terms of mechanical properties of bamboo, tensile and compression test between the raw and oven-dried bamboo specimens have been performed. On the other hand, for the composite plate fabrication, the bamboo fibres had been treated with 10 % of sodium hydroxide (NaOH) for 48 hours. The bamboo fibres with a density of 0.75 g/cm3 are mixed with epoxy resin matrix in the ratio of 2:3. Tensile and flexural strength tests are executed to compare the characteristics between the neat epoxy and bamboo fibre-epoxy composite plate (BFECP). Moreover, the BFECP is bonded to the reinforced concrete (RC) beam as external strengthening material. Four-points loading test is performed to study the structural behaviour between the control (CB), un-strengthened (USTB) and strengthened beam (SSTB). From the results, the tensile and compressive strength of the oven-dried bamboo specimens are higher than in raw condition, which is 48.77 % and 31.68 %, respectively. Meanwhile, the BFECP are 309.73 % and 820.11 %, respectively, greater than neat epoxy in terms of tensile and flexural strength. On the other hand, the ultimate load sustained by the strengthened beam is 16.81 % and 23.84 % higher than control beam and un-strengthened beam, respectively. In terms of crack propagation, the flexural cracks were found in the mid-span of beam specimens while only control beams failed in bending and experienced diagonal tension failure. This signifies that bamboo fibres-epoxy composite plate has potential to be used as an alternative strengthening material for synthetic reinforced polymer. 2018-06 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/29495/1/Strengthening%20of%20rc%20beam%20externallly%20using%20bamboo%20fibre%20reinforced.pdf Lee, Mei Chin (2018) Strengthening of RC beam externallly using bamboo fibre reinforced composite : a study on Gigantochloa Scortechinii. Faculty of Civil Engineering and Earth Resources, Universiti Malaysia Pahang.
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Lee, Mei Chin
Strengthening of RC beam externallly using bamboo fibre reinforced composite : a study on Gigantochloa Scortechinii
description The use of fibre reinforced polymer as external strengthening in reinforced concrete (RC) structures which in need to carry out rehabilitation works. A study on Gigantochloa Scortechnii (Buluh Semantan) has been conducted to investigate the mechanical properties of the bamboo and its fibres to be used in composite fabrication. In this research, the bamboos are obtained from Raub, Pahang. In terms of mechanical properties of bamboo, tensile and compression test between the raw and oven-dried bamboo specimens have been performed. On the other hand, for the composite plate fabrication, the bamboo fibres had been treated with 10 % of sodium hydroxide (NaOH) for 48 hours. The bamboo fibres with a density of 0.75 g/cm3 are mixed with epoxy resin matrix in the ratio of 2:3. Tensile and flexural strength tests are executed to compare the characteristics between the neat epoxy and bamboo fibre-epoxy composite plate (BFECP). Moreover, the BFECP is bonded to the reinforced concrete (RC) beam as external strengthening material. Four-points loading test is performed to study the structural behaviour between the control (CB), un-strengthened (USTB) and strengthened beam (SSTB). From the results, the tensile and compressive strength of the oven-dried bamboo specimens are higher than in raw condition, which is 48.77 % and 31.68 %, respectively. Meanwhile, the BFECP are 309.73 % and 820.11 %, respectively, greater than neat epoxy in terms of tensile and flexural strength. On the other hand, the ultimate load sustained by the strengthened beam is 16.81 % and 23.84 % higher than control beam and un-strengthened beam, respectively. In terms of crack propagation, the flexural cracks were found in the mid-span of beam specimens while only control beams failed in bending and experienced diagonal tension failure. This signifies that bamboo fibres-epoxy composite plate has potential to be used as an alternative strengthening material for synthetic reinforced polymer.
format Undergraduates Project Papers
author Lee, Mei Chin
author_facet Lee, Mei Chin
author_sort Lee, Mei Chin
title Strengthening of RC beam externallly using bamboo fibre reinforced composite : a study on Gigantochloa Scortechinii
title_short Strengthening of RC beam externallly using bamboo fibre reinforced composite : a study on Gigantochloa Scortechinii
title_full Strengthening of RC beam externallly using bamboo fibre reinforced composite : a study on Gigantochloa Scortechinii
title_fullStr Strengthening of RC beam externallly using bamboo fibre reinforced composite : a study on Gigantochloa Scortechinii
title_full_unstemmed Strengthening of RC beam externallly using bamboo fibre reinforced composite : a study on Gigantochloa Scortechinii
title_sort strengthening of rc beam externallly using bamboo fibre reinforced composite : a study on gigantochloa scortechinii
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/29495/1/Strengthening%20of%20rc%20beam%20externallly%20using%20bamboo%20fibre%20reinforced.pdf
http://umpir.ump.edu.my/id/eprint/29495/
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