Influence of elevated temperatures on compressive and flexural strengths of Cocos nucifera Linn. fiber strengthened lightweight foamcrete

Abstract The call for lightweight foamcrete technology is impelled by the amplified rules and guidelines with the aim of minimizing greenhouse gas emission and reducing carbon footprint. The use of natural fibers in foamcrete is considered as a useful option in making concrete a sustainable material...

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Autores principales:	Othuman Mydin,Md Azree, Mohd Zamzani,Nabihah, Abdul Ghani,Abdul Naser
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2020
Materias:	Foamed concrete elevated temperatures compressive strength flexural strength coconut fiber coir
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2020000100112
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spelling	oai:scielo:S0718-915X20200001001122020-05-26Influence of elevated temperatures on compressive and flexural strengths of Cocos nucifera Linn. fiber strengthened lightweight foamcreteOthuman Mydin,Md AzreeMohd Zamzani,NabihahAbdul Ghani,Abdul Naser Foamed concrete elevated temperatures compressive strength flexural strength coconut fiber coir Abstract The call for lightweight foamcrete technology is impelled by the amplified rules and guidelines with the aim of minimizing greenhouse gas emission and reducing carbon footprint. The use of natural fibers in foamcrete is considered as a useful option in making concrete a sustainable material. Therefore, the aim of the present study was to determine the compressive and flexural strengths of foamcrete reinforced with Cocos nucifera Linn. fiber (CNF) exposed to elevated temperatures. CNF refers to agricultural waste or by-products obtained from the distribution of coconut oil and accumulated in a large amount in Malaysia. This study aimed to identify the response of CNF towards six different contents (0.1%, 0.2%, 0.3%, 0.4%, 0.5%, and 0.6%) by mix volume. Three different densities of 650, 1050 and 1450 kg/m3 were tested in this study. The proportion of foamcrete constituted cement, sand, and water which were represented by the ratio of 1:1.5:0.45. Results showed that, CNF-strengthened foamcrete offered progressively ductile structure contrasted with plain foamcrete at elevated temperatures. The incorporation of CNF enhanced the mechanical properties at each predetermined temperature for all densities investigated. This demonstrates that CNF has strong bonding and good quality of chemical properties that are unique to it. The optimum volume fractions of CNF that gave the best improvement in mechanical and high temperature properties were 0.3% for 650 kg/m3, 0.4% for 1050 kg/m3 and 0.5% for 1450 kg/m3.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.19 n.1 20202020-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2020000100112en10.7764/rdlc.19.1.112-126
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Foamed concrete elevated temperatures compressive strength flexural strength coconut fiber coir
spellingShingle	Foamed concrete elevated temperatures compressive strength flexural strength coconut fiber coir Othuman Mydin,Md Azree Mohd Zamzani,Nabihah Abdul Ghani,Abdul Naser Influence of elevated temperatures on compressive and flexural strengths of Cocos nucifera Linn. fiber strengthened lightweight foamcrete
description	Abstract The call for lightweight foamcrete technology is impelled by the amplified rules and guidelines with the aim of minimizing greenhouse gas emission and reducing carbon footprint. The use of natural fibers in foamcrete is considered as a useful option in making concrete a sustainable material. Therefore, the aim of the present study was to determine the compressive and flexural strengths of foamcrete reinforced with Cocos nucifera Linn. fiber (CNF) exposed to elevated temperatures. CNF refers to agricultural waste or by-products obtained from the distribution of coconut oil and accumulated in a large amount in Malaysia. This study aimed to identify the response of CNF towards six different contents (0.1%, 0.2%, 0.3%, 0.4%, 0.5%, and 0.6%) by mix volume. Three different densities of 650, 1050 and 1450 kg/m3 were tested in this study. The proportion of foamcrete constituted cement, sand, and water which were represented by the ratio of 1:1.5:0.45. Results showed that, CNF-strengthened foamcrete offered progressively ductile structure contrasted with plain foamcrete at elevated temperatures. The incorporation of CNF enhanced the mechanical properties at each predetermined temperature for all densities investigated. This demonstrates that CNF has strong bonding and good quality of chemical properties that are unique to it. The optimum volume fractions of CNF that gave the best improvement in mechanical and high temperature properties were 0.3% for 650 kg/m3, 0.4% for 1050 kg/m3 and 0.5% for 1450 kg/m3.
author	Othuman Mydin,Md Azree Mohd Zamzani,Nabihah Abdul Ghani,Abdul Naser
author_facet	Othuman Mydin,Md Azree Mohd Zamzani,Nabihah Abdul Ghani,Abdul Naser
author_sort	Othuman Mydin,Md Azree
title	Influence of elevated temperatures on compressive and flexural strengths of Cocos nucifera Linn. fiber strengthened lightweight foamcrete
title_short	Influence of elevated temperatures on compressive and flexural strengths of Cocos nucifera Linn. fiber strengthened lightweight foamcrete
title_full	Influence of elevated temperatures on compressive and flexural strengths of Cocos nucifera Linn. fiber strengthened lightweight foamcrete
title_fullStr	Influence of elevated temperatures on compressive and flexural strengths of Cocos nucifera Linn. fiber strengthened lightweight foamcrete
title_full_unstemmed	Influence of elevated temperatures on compressive and flexural strengths of Cocos nucifera Linn. fiber strengthened lightweight foamcrete
title_sort	influence of elevated temperatures on compressive and flexural strengths of cocos nucifera linn. fiber strengthened lightweight foamcrete
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2020000100112
work_keys_str_mv	AT othumanmydinmdazree influenceofelevatedtemperaturesoncompressiveandflexuralstrengthsofcocosnuciferalinnfiberstrengthenedlightweightfoamcrete AT mohdzamzaninabihah influenceofelevatedtemperaturesoncompressiveandflexuralstrengthsofcocosnuciferalinnfiberstrengthenedlightweightfoamcrete AT abdulghaniabdulnaser influenceofelevatedtemperaturesoncompressiveandflexuralstrengthsofcocosnuciferalinnfiberstrengthenedlightweightfoamcrete
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Influence of elevated temperatures on compressive and flexural strengths of Cocos nucifera Linn. fiber strengthened lightweight foamcrete

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