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Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete

Recently, the addition of natural fibers to high strength concrete (HSC) has been of great interest in the field of construction materials. Compared to artificial fibers, natural fibers are cheap and locally available. Among all natural fibers, coconut fibers have the greatest known toughness. In th...

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Autores principales: Ahmad, Waqas, Farooq, Syed Hassan, Usman, Muhammad, Khan, Mehran, Ahmad, Ayaz, Aslam, Fahid, Yousef, Rayed Al, Abduljabbar, Hisham Al, Sufian, Muhammad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7084858/
https://www.ncbi.nlm.nih.gov/pubmed/32121125
http://dx.doi.org/10.3390/ma13051075
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author Ahmad, Waqas
Farooq, Syed Hassan
Usman, Muhammad
Khan, Mehran
Ahmad, Ayaz
Aslam, Fahid
Yousef, Rayed Al
Abduljabbar, Hisham Al
Sufian, Muhammad
author_facet Ahmad, Waqas
Farooq, Syed Hassan
Usman, Muhammad
Khan, Mehran
Ahmad, Ayaz
Aslam, Fahid
Yousef, Rayed Al
Abduljabbar, Hisham Al
Sufian, Muhammad
author_sort Ahmad, Waqas
collection PubMed
description Recently, the addition of natural fibers to high strength concrete (HSC) has been of great interest in the field of construction materials. Compared to artificial fibers, natural fibers are cheap and locally available. Among all natural fibers, coconut fibers have the greatest known toughness. In this work, the mechanical properties of coconut fiber reinforced high strength concrete (CFR-HSC) are explored. Silica fume (10% by mass) and super plasticizer (1% by mass) are also added to the CFR-HSC. The influence of 25 mm-, 50 mm-, and 75 mm-long coconut fibers and 0.5%, 1%, 1.5%, and 2% contents by mass is investigated. The microstructure of CFR-HSC is studied using scanning electron microscopy (SEM). The experimental results revealed that CFR-HSC has improved compressive, splitting-tensile, and flexural strengths, and energy absorption and toughness indices compared to HSC. The overall best results are obtained for the CFR-HSC having 50 mm long coconut fibers with 1.5% content by cement mass.
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spelling pubmed-70848582020-03-23 Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete Ahmad, Waqas Farooq, Syed Hassan Usman, Muhammad Khan, Mehran Ahmad, Ayaz Aslam, Fahid Yousef, Rayed Al Abduljabbar, Hisham Al Sufian, Muhammad Materials (Basel) Article Recently, the addition of natural fibers to high strength concrete (HSC) has been of great interest in the field of construction materials. Compared to artificial fibers, natural fibers are cheap and locally available. Among all natural fibers, coconut fibers have the greatest known toughness. In this work, the mechanical properties of coconut fiber reinforced high strength concrete (CFR-HSC) are explored. Silica fume (10% by mass) and super plasticizer (1% by mass) are also added to the CFR-HSC. The influence of 25 mm-, 50 mm-, and 75 mm-long coconut fibers and 0.5%, 1%, 1.5%, and 2% contents by mass is investigated. The microstructure of CFR-HSC is studied using scanning electron microscopy (SEM). The experimental results revealed that CFR-HSC has improved compressive, splitting-tensile, and flexural strengths, and energy absorption and toughness indices compared to HSC. The overall best results are obtained for the CFR-HSC having 50 mm long coconut fibers with 1.5% content by cement mass. MDPI 2020-02-28 /pmc/articles/PMC7084858/ /pubmed/32121125 http://dx.doi.org/10.3390/ma13051075 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ahmad, Waqas
Farooq, Syed Hassan
Usman, Muhammad
Khan, Mehran
Ahmad, Ayaz
Aslam, Fahid
Yousef, Rayed Al
Abduljabbar, Hisham Al
Sufian, Muhammad
Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete
title Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete
title_full Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete
title_fullStr Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete
title_full_unstemmed Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete
title_short Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete
title_sort effect of coconut fiber length and content on properties of high strength concrete
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7084858/
https://www.ncbi.nlm.nih.gov/pubmed/32121125
http://dx.doi.org/10.3390/ma13051075
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