Effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar

Exposure to fire can cause significant damage to concrete structures that use cement as a binding material, which in turn can affect their stability. However, there has been less research into the fire-induced damage of concrete mixed with natural materials such as basalt and bamboo fibres. Therefor...

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Main Authors: Nur Nabila Syazwani, Marsidi, Chin, Siew Choo
Format: Conference or Workshop Item
Language:English
English
Published: Elsevier Ltd 2024
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/42402/
http://umpir.ump.edu.my/id/eprint/42402/1/Effect%20of%20elevated%20temperature%20of%20hybrid%20fibres_ABST.pdf
http://umpir.ump.edu.my/id/eprint/42402/2/Effect%20of%20elevated%20temperature%20of%20hybrid%20fibres.pdf
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author Nur Nabila Syazwani, Marsidi
Chin, Siew Choo
author_facet Nur Nabila Syazwani, Marsidi
Chin, Siew Choo
author_sort Nur Nabila Syazwani, Marsidi
building UMP Institutional Repository
collection Online Access
description Exposure to fire can cause significant damage to concrete structures that use cement as a binding material, which in turn can affect their stability. However, there has been less research into the fire-induced damage of concrete mixed with natural materials such as basalt and bamboo fibres. Therefore, the purpose of this study is to investigate how elevated temperatures affect cement mortar containing basalt fibre, bamboo fibre, and a combination of the two, and to determine the mechanical properties of different percentages of hybrid fibre concrete in terms of compressive strength and flexural tensile strength. Cement mortar blocks and prisms were prepared with and without fibres, and basalt fibres ranging from 0.1% to 0.5% were added to cement mix containing 0.5% of bamboo fibres. The strength of the mortar was then determined after being exposed to temperatures ranging from 400 to 1000 °C for 2 h, following a curing period of 28 days. Both the compressive and flexural strengths reduced significantly after the specimen was subjected to heating, especially at temperatures ≥ 800 °C. The results indicate that the mortar containing 0.1% basalt fibre and 0.5% bamboo fibre exhibits the highest fire resistance, with the highest compressive strength even after being heated to 1000 °C. Overall, the combination of basalt and bamboo fibres demonstrates greater strength compared to specimens containing only a single fibre after exposure to elevated temperatures.
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spelling ump-424022025-01-20T08:14:27Z http://umpir.ump.edu.my/id/eprint/42402/ Effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar Nur Nabila Syazwani, Marsidi Chin, Siew Choo TA Engineering (General). Civil engineering (General) TH Building construction Exposure to fire can cause significant damage to concrete structures that use cement as a binding material, which in turn can affect their stability. However, there has been less research into the fire-induced damage of concrete mixed with natural materials such as basalt and bamboo fibres. Therefore, the purpose of this study is to investigate how elevated temperatures affect cement mortar containing basalt fibre, bamboo fibre, and a combination of the two, and to determine the mechanical properties of different percentages of hybrid fibre concrete in terms of compressive strength and flexural tensile strength. Cement mortar blocks and prisms were prepared with and without fibres, and basalt fibres ranging from 0.1% to 0.5% were added to cement mix containing 0.5% of bamboo fibres. The strength of the mortar was then determined after being exposed to temperatures ranging from 400 to 1000 °C for 2 h, following a curing period of 28 days. Both the compressive and flexural strengths reduced significantly after the specimen was subjected to heating, especially at temperatures ≥ 800 °C. The results indicate that the mortar containing 0.1% basalt fibre and 0.5% bamboo fibre exhibits the highest fire resistance, with the highest compressive strength even after being heated to 1000 °C. Overall, the combination of basalt and bamboo fibres demonstrates greater strength compared to specimens containing only a single fibre after exposure to elevated temperatures. Elsevier Ltd 2024 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/42402/1/Effect%20of%20elevated%20temperature%20of%20hybrid%20fibres_ABST.pdf pdf en http://umpir.ump.edu.my/id/eprint/42402/2/Effect%20of%20elevated%20temperature%20of%20hybrid%20fibres.pdf Nur Nabila Syazwani, Marsidi and Chin, Siew Choo (2024) Effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar. In: Materials Today: Proceedings. Materials Today: Proceedings; 6th National Conference for Postgraduate Research (NCON-PGR 2022) , 15 November 2022 , Virtual, Online. pp. 172-178., 107. ISSN 2214-7853 (Published) https://doi.org/10.1016/j.matpr.2023.09.116
spellingShingle TA Engineering (General). Civil engineering (General)
TH Building construction
Nur Nabila Syazwani, Marsidi
Chin, Siew Choo
Effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar
title Effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar
title_full Effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar
title_fullStr Effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar
title_full_unstemmed Effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar
title_short Effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar
title_sort effect of elevated temperature of hybrid fibres on the mechanical performance of cement mortar
topic TA Engineering (General). Civil engineering (General)
TH Building construction
url http://umpir.ump.edu.my/id/eprint/42402/
http://umpir.ump.edu.my/id/eprint/42402/
http://umpir.ump.edu.my/id/eprint/42402/1/Effect%20of%20elevated%20temperature%20of%20hybrid%20fibres_ABST.pdf
http://umpir.ump.edu.my/id/eprint/42402/2/Effect%20of%20elevated%20temperature%20of%20hybrid%20fibres.pdf