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Bonding Properties of Basalt Fiber and Strength Reduction According to Fiber Orientation

The basalt fiber is a promising reinforcing fiber because it has a relatively higher tensile strength and a density similar to that of a concrete matrix as well as no corrosion possibility. This study investigated experimentally the bonding properties of basalt fiber with cementitious material as we...

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Autores principales: Choi, Jeong-Il, Lee, Bang Yeon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455386/
https://www.ncbi.nlm.nih.gov/pubmed/28793595
http://dx.doi.org/10.3390/ma8105335
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author Choi, Jeong-Il
Lee, Bang Yeon
author_facet Choi, Jeong-Il
Lee, Bang Yeon
author_sort Choi, Jeong-Il
collection PubMed
description The basalt fiber is a promising reinforcing fiber because it has a relatively higher tensile strength and a density similar to that of a concrete matrix as well as no corrosion possibility. This study investigated experimentally the bonding properties of basalt fiber with cementitious material as well as the effect of fiber orientation on the tensile strength of basalt fiber for evaluating basalt fiber’s suitability as a reinforcing fiber. Single fiber pullout tests were performed and then the tensile strength of fiber was measured according to fiber orientation. The test results showed that basalt fiber has a strong chemical bond with the cementitious matrix, 1.88 times higher than that of polyvinyl alcohol fibers with it. However, other properties of basalt fiber such as slip-hardening coefficient and strength reduction coefficient were worse than PVA and polyethylene fibers in terms of fiber bridging capacity. Theoretical fiber-bridging curves showed that the basalt fiber reinforcing system has a higher cracking strength than the PVA fiber reinforcing system, but the reinforcing system showed softening behavior after cracking.
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spelling pubmed-54553862017-07-28 Bonding Properties of Basalt Fiber and Strength Reduction According to Fiber Orientation Choi, Jeong-Il Lee, Bang Yeon Materials (Basel) Article The basalt fiber is a promising reinforcing fiber because it has a relatively higher tensile strength and a density similar to that of a concrete matrix as well as no corrosion possibility. This study investigated experimentally the bonding properties of basalt fiber with cementitious material as well as the effect of fiber orientation on the tensile strength of basalt fiber for evaluating basalt fiber’s suitability as a reinforcing fiber. Single fiber pullout tests were performed and then the tensile strength of fiber was measured according to fiber orientation. The test results showed that basalt fiber has a strong chemical bond with the cementitious matrix, 1.88 times higher than that of polyvinyl alcohol fibers with it. However, other properties of basalt fiber such as slip-hardening coefficient and strength reduction coefficient were worse than PVA and polyethylene fibers in terms of fiber bridging capacity. Theoretical fiber-bridging curves showed that the basalt fiber reinforcing system has a higher cracking strength than the PVA fiber reinforcing system, but the reinforcing system showed softening behavior after cracking. MDPI 2015-09-30 /pmc/articles/PMC5455386/ /pubmed/28793595 http://dx.doi.org/10.3390/ma8105335 Text en © 2015 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 license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Choi, Jeong-Il
Lee, Bang Yeon
Bonding Properties of Basalt Fiber and Strength Reduction According to Fiber Orientation
title Bonding Properties of Basalt Fiber and Strength Reduction According to Fiber Orientation
title_full Bonding Properties of Basalt Fiber and Strength Reduction According to Fiber Orientation
title_fullStr Bonding Properties of Basalt Fiber and Strength Reduction According to Fiber Orientation
title_full_unstemmed Bonding Properties of Basalt Fiber and Strength Reduction According to Fiber Orientation
title_short Bonding Properties of Basalt Fiber and Strength Reduction According to Fiber Orientation
title_sort bonding properties of basalt fiber and strength reduction according to fiber orientation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455386/
https://www.ncbi.nlm.nih.gov/pubmed/28793595
http://dx.doi.org/10.3390/ma8105335
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