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Properties of Alkali-Resistant Glass Fiber Reinforced Coral Aggregate Concrete

The intention of this paper is to analyze the properties of coral aggregate concrete (CAC) that is reinforced by alkali-resistant glass fibers (ARGF) and the bond performance with BFRP (basalt fiber reinforced polymer) bars. Two types of ARGF, denoted by Type A and Type B with different manufacturin...

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Autores principales: Yang, Shutong, Yu, Miao, Dong, Kun, Yang, Yushan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475914/
https://www.ncbi.nlm.nih.gov/pubmed/32764396
http://dx.doi.org/10.3390/ma13163450
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author Yang, Shutong
Yu, Miao
Dong, Kun
Yang, Yushan
author_facet Yang, Shutong
Yu, Miao
Dong, Kun
Yang, Yushan
author_sort Yang, Shutong
collection PubMed
description The intention of this paper is to analyze the properties of coral aggregate concrete (CAC) that is reinforced by alkali-resistant glass fibers (ARGF) and the bond performance with BFRP (basalt fiber reinforced polymer) bars. Two types of ARGF, denoted by Type A and Type B with different manufacturing technologies and fiber lengths, are used in the test. Tests of compressive strength, splitting tensile strength, and flexural performance were performed on ARGF-CAC with four different contents for the two types of ARGF. It is found that the cubic compressive strength is slightly reduced when the fiber volume fraction exceeds 0.5%, but almost keeps invariable if the fiber content further increases. However, the tensile strength, residual strength retention and flexural toughness are improved as more ARGFs are added into CAC, and even higher with Type B ARGF addition. The optimized volume fraction is 1.5% for both the two types of ARGF based on the evaluation of the workability and mechanical performance. Moreover, central pull-out test was performed to study the bond properties of ARGF-CAC with BFRP bars. It is found that both the maximum average bond stress and residual frictional stress are generally reduced as the bond length is longer. The addition of Type B ARGFs can significantly improve the bond strength; however, the Type A ARGFs seem to have marginal effect.
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spelling pubmed-74759142020-09-17 Properties of Alkali-Resistant Glass Fiber Reinforced Coral Aggregate Concrete Yang, Shutong Yu, Miao Dong, Kun Yang, Yushan Materials (Basel) Article The intention of this paper is to analyze the properties of coral aggregate concrete (CAC) that is reinforced by alkali-resistant glass fibers (ARGF) and the bond performance with BFRP (basalt fiber reinforced polymer) bars. Two types of ARGF, denoted by Type A and Type B with different manufacturing technologies and fiber lengths, are used in the test. Tests of compressive strength, splitting tensile strength, and flexural performance were performed on ARGF-CAC with four different contents for the two types of ARGF. It is found that the cubic compressive strength is slightly reduced when the fiber volume fraction exceeds 0.5%, but almost keeps invariable if the fiber content further increases. However, the tensile strength, residual strength retention and flexural toughness are improved as more ARGFs are added into CAC, and even higher with Type B ARGF addition. The optimized volume fraction is 1.5% for both the two types of ARGF based on the evaluation of the workability and mechanical performance. Moreover, central pull-out test was performed to study the bond properties of ARGF-CAC with BFRP bars. It is found that both the maximum average bond stress and residual frictional stress are generally reduced as the bond length is longer. The addition of Type B ARGFs can significantly improve the bond strength; however, the Type A ARGFs seem to have marginal effect. MDPI 2020-08-05 /pmc/articles/PMC7475914/ /pubmed/32764396 http://dx.doi.org/10.3390/ma13163450 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
Yang, Shutong
Yu, Miao
Dong, Kun
Yang, Yushan
Properties of Alkali-Resistant Glass Fiber Reinforced Coral Aggregate Concrete
title Properties of Alkali-Resistant Glass Fiber Reinforced Coral Aggregate Concrete
title_full Properties of Alkali-Resistant Glass Fiber Reinforced Coral Aggregate Concrete
title_fullStr Properties of Alkali-Resistant Glass Fiber Reinforced Coral Aggregate Concrete
title_full_unstemmed Properties of Alkali-Resistant Glass Fiber Reinforced Coral Aggregate Concrete
title_short Properties of Alkali-Resistant Glass Fiber Reinforced Coral Aggregate Concrete
title_sort properties of alkali-resistant glass fiber reinforced coral aggregate concrete
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475914/
https://www.ncbi.nlm.nih.gov/pubmed/32764396
http://dx.doi.org/10.3390/ma13163450
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