Evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non-destructive testing

The mechanical properties of concrete containing crumb rubber (CR) as a replacement for fine aggregate have been studied by many researchers. The consequence of these studies indicates that when CR is used as a substitute for fine aggregates in concrete, the properties in the fresh and hardened stat...

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Main Authors: Hason, Mahir Mahmod, Abd. Aziz, Farah Nora Aznieta, Gatea, Sarah Jabbar
Format: Article
Language:English
Published: Korean Society of Civil Engineers 2017
Online Access:http://psasir.upm.edu.my/id/eprint/785/1/Evaluation%20of%20rubberized%20fibre%20mortar%20exposed%20to%20elevated%20temperature%20using%20destructive%20and%20non-destructive%20testing.pdf
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author Hason, Mahir Mahmod
Abd. Aziz, Farah Nora Aznieta
Gatea, Sarah Jabbar
author_facet Hason, Mahir Mahmod
Abd. Aziz, Farah Nora Aznieta
Gatea, Sarah Jabbar
author_sort Hason, Mahir Mahmod
collection UPM
description The mechanical properties of concrete containing crumb rubber (CR) as a replacement for fine aggregate have been studied by many researchers. The consequence of these studies indicates that when CR is used as a substitute for fine aggregates in concrete, the properties in the fresh and hardened states are affected. Although the compressive strength of rubberised concrete decreased as the percentage of CR increased, rubberised concrete had better thermal resistivity. Therefore, this paper presents the results of research on the evaluation of conventional compressive strength (fcu) and non-destructive testing (NDT) at high temperatures for lightweight mortar made with CR and oil palm fruit fibre (OPFF). Sixteen mortar mixtures with 0-30% CR and 1-1.5% OPFF as a replacement ratio by weight of aggregate and cement were tested. All samples were subjected to elevated temperatures (ETs) of 200°C, 400°C and 600°C. The results show that both compressive strength and NDT decreased for all samples, especially samples containing 30% CR and exposed to 600°C. Despite this fact, the compressive strength of more than 97% of the samples fell within the range of moderate to structural lightweight concrete.
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spelling upm.eprints-7852018-09-20T07:29:26Z http://psasir.upm.edu.my/id/eprint/785/ Evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non-destructive testing Hason, Mahir Mahmod Abd. Aziz, Farah Nora Aznieta Gatea, Sarah Jabbar The mechanical properties of concrete containing crumb rubber (CR) as a replacement for fine aggregate have been studied by many researchers. The consequence of these studies indicates that when CR is used as a substitute for fine aggregates in concrete, the properties in the fresh and hardened states are affected. Although the compressive strength of rubberised concrete decreased as the percentage of CR increased, rubberised concrete had better thermal resistivity. Therefore, this paper presents the results of research on the evaluation of conventional compressive strength (fcu) and non-destructive testing (NDT) at high temperatures for lightweight mortar made with CR and oil palm fruit fibre (OPFF). Sixteen mortar mixtures with 0-30% CR and 1-1.5% OPFF as a replacement ratio by weight of aggregate and cement were tested. All samples were subjected to elevated temperatures (ETs) of 200°C, 400°C and 600°C. The results show that both compressive strength and NDT decreased for all samples, especially samples containing 30% CR and exposed to 600°C. Despite this fact, the compressive strength of more than 97% of the samples fell within the range of moderate to structural lightweight concrete. Korean Society of Civil Engineers 2017 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/785/1/Evaluation%20of%20rubberized%20fibre%20mortar%20exposed%20to%20elevated%20temperature%20using%20destructive%20and%20non-destructive%20testing.pdf Hason, Mahir Mahmod and Abd. Aziz, Farah Nora Aznieta and Gatea, Sarah Jabbar (2017) Evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non-destructive testing. KSCE Journal of Civil Engineering, 21 (4). pp. 1347-1358. ISSN 1226-7988; ESSN: 1976-3808 https://link.springer.com/article/10.1007/s12205-016-0721-0 10.1007/s12205-016-0721-0
spellingShingle Hason, Mahir Mahmod
Abd. Aziz, Farah Nora Aznieta
Gatea, Sarah Jabbar
Evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non-destructive testing
title Evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non-destructive testing
title_full Evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non-destructive testing
title_fullStr Evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non-destructive testing
title_full_unstemmed Evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non-destructive testing
title_short Evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non-destructive testing
title_sort evaluation of rubberized fibre mortar exposed to elevated temperature using destructive and non destructive testing
url http://psasir.upm.edu.my/id/eprint/785/1/Evaluation%20of%20rubberized%20fibre%20mortar%20exposed%20to%20elevated%20temperature%20using%20destructive%20and%20non-destructive%20testing.pdf
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