Effects of Water and Alkaline Solution on Durability of Carbon-Glass Hybrid Fiber Reinforced Polymer Bars

The glass fiber reacts with the hydroxyl owing to the concrete pore solution. A thin coat of carbon fiber wraps around the internal GFRP bars to improve the durability of internal GFRP bars in harsh environments. This paper investigates the effect of a thin carbon fiber coat on the durability of the...

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Autores principales:	Yixun Yu, Yunfeng Pan, Ronggui Zhou, Xinbo Miao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fiber reinforced polymer bars carbon fiber water diffusion interlaminar shear strength Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/17bf6edc4c8e4686bb3da8eb9848ccf2
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id	oai:doaj.org-article:17bf6edc4c8e4686bb3da8eb9848ccf2
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spelling	oai:doaj.org-article:17bf6edc4c8e4686bb3da8eb9848ccf22021-11-11T18:48:53ZEffects of Water and Alkaline Solution on Durability of Carbon-Glass Hybrid Fiber Reinforced Polymer Bars10.3390/polym132138442073-4360https://doaj.org/article/17bf6edc4c8e4686bb3da8eb9848ccf22021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3844https://doaj.org/toc/2073-4360The glass fiber reacts with the hydroxyl owing to the concrete pore solution. A thin coat of carbon fiber wraps around the internal GFRP bars to improve the durability of internal GFRP bars in harsh environments. This paper investigates the effect of a thin carbon fiber coat on the durability of the carbon–glass hybrid fiber reinforced polymer bars (HFRP bars) in water, and compares the performance of FRP bars in alkaline solution. To this end, the water absorption behavior, interlaminar shear strength of both the GFRP bars and the HFRP bars was characterized in water and alkaline solution. The results indicate that the diffusivity coefficient of the carbon fiber coat is higher than that of internal GFRP in water. Compared to the GFRP bars in water, the HFRP bars have a higher diffusivity coefficient and saturation water absorption. It caused that the interlaminar shear strength of the HFRP bars aged in water at a temperature of 60 °C for 140 days decreases more markedly than that of the GFRP bars aged under similar conditions. Finally, it was proved that the thin carbon fiber coat does not slow the deterioration of the GFRP bars in water, while the carbon fiber coat significantly improves the retention of the interlaminar shear strength of the HFRP bars in the alkaline solution owing to the prevention of internal glass fiber reactivated by alkali ions.Yixun YuYunfeng PanRonggui ZhouXinbo MiaoMDPI AGarticlefiber reinforced polymer barscarbon fiberwater diffusioninterlaminar shear strengthOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3844, p 3844 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fiber reinforced polymer bars carbon fiber water diffusion interlaminar shear strength Organic chemistry QD241-441
spellingShingle	fiber reinforced polymer bars carbon fiber water diffusion interlaminar shear strength Organic chemistry QD241-441 Yixun Yu Yunfeng Pan Ronggui Zhou Xinbo Miao Effects of Water and Alkaline Solution on Durability of Carbon-Glass Hybrid Fiber Reinforced Polymer Bars
description	The glass fiber reacts with the hydroxyl owing to the concrete pore solution. A thin coat of carbon fiber wraps around the internal GFRP bars to improve the durability of internal GFRP bars in harsh environments. This paper investigates the effect of a thin carbon fiber coat on the durability of the carbon–glass hybrid fiber reinforced polymer bars (HFRP bars) in water, and compares the performance of FRP bars in alkaline solution. To this end, the water absorption behavior, interlaminar shear strength of both the GFRP bars and the HFRP bars was characterized in water and alkaline solution. The results indicate that the diffusivity coefficient of the carbon fiber coat is higher than that of internal GFRP in water. Compared to the GFRP bars in water, the HFRP bars have a higher diffusivity coefficient and saturation water absorption. It caused that the interlaminar shear strength of the HFRP bars aged in water at a temperature of 60 °C for 140 days decreases more markedly than that of the GFRP bars aged under similar conditions. Finally, it was proved that the thin carbon fiber coat does not slow the deterioration of the GFRP bars in water, while the carbon fiber coat significantly improves the retention of the interlaminar shear strength of the HFRP bars in the alkaline solution owing to the prevention of internal glass fiber reactivated by alkali ions.
format	article
author	Yixun Yu Yunfeng Pan Ronggui Zhou Xinbo Miao
author_facet	Yixun Yu Yunfeng Pan Ronggui Zhou Xinbo Miao
author_sort	Yixun Yu
title	Effects of Water and Alkaline Solution on Durability of Carbon-Glass Hybrid Fiber Reinforced Polymer Bars
title_short	Effects of Water and Alkaline Solution on Durability of Carbon-Glass Hybrid Fiber Reinforced Polymer Bars
title_full	Effects of Water and Alkaline Solution on Durability of Carbon-Glass Hybrid Fiber Reinforced Polymer Bars
title_fullStr	Effects of Water and Alkaline Solution on Durability of Carbon-Glass Hybrid Fiber Reinforced Polymer Bars
title_full_unstemmed	Effects of Water and Alkaline Solution on Durability of Carbon-Glass Hybrid Fiber Reinforced Polymer Bars
title_sort	effects of water and alkaline solution on durability of carbon-glass hybrid fiber reinforced polymer bars
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/17bf6edc4c8e4686bb3da8eb9848ccf2
work_keys_str_mv	AT yixunyu effectsofwaterandalkalinesolutionondurabilityofcarbonglasshybridfiberreinforcedpolymerbars AT yunfengpan effectsofwaterandalkalinesolutionondurabilityofcarbonglasshybridfiberreinforcedpolymerbars AT rongguizhou effectsofwaterandalkalinesolutionondurabilityofcarbonglasshybridfiberreinforcedpolymerbars AT xinbomiao effectsofwaterandalkalinesolutionondurabilityofcarbonglasshybridfiberreinforcedpolymerbars
_version_	1718431688735850496

Effects of Water and Alkaline Solution on Durability of Carbon-Glass Hybrid Fiber Reinforced Polymer Bars

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