Performance Degradation of Fiber-Reinforced Concrete under Freeze-Thaw Cycles and Its Resistance to Chloride Ion Penetration

doi:10.1061/(ASCE)MT.1943-5533.0004314

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	Performance Degradation of Fiber-Reinforced Concrete under Freeze-Thaw Cycles and Its Resistance to Chloride Ion Penetration
	Li, Jiangchuan 1; Chang, Jun 1; Qiao, Hongxia 2
刊名	Journal of Materials in Civil Engineering
	2022-08-01
卷号	34 期号:8
关键词	Bending strength Chlorine compounds Elastic moduli Fiber reinforced materials Fibers Freezing Frost resistance Ions Polyvinyl alcohols Reinforced concrete Thawing Chloride ion penetration Chloride ions Dynamic elastic moduli Fiber-reinforced concretes Freeze-thaw cycles Mass loss Penetration resistances Polyvinyl alcohol fiber-reinforced concrete Polyvinyl alcohol fiber Resistance to chloride ion penetration
ISSN号	0899-1561
DOI	10.1061/(ASCE)MT.1943-5533.0004314
英文摘要	This study investigated the frost resistance of fiber-reinforced concrete with different contents of polyvinyl alcohol (PVA) fiber under freeze-thaw cycles, and the resistance to chloride penetration. The freeze-thaw cycle experiment was carried out using the rapid freeze-thaw method. Mass loss, relative dynamic modulus of elasticity, compressive strength, and flexural strength were investigated, and the influence of chloride ion content and the chloride ion diffusion coefficient after freeze-thaw cycles was analyzed. The results showed that under freeze-thaw cycles, PVA fiber can effectively reduce mass and dynamic elastic modulus loss and improve compressive and flexural strength. The contributions of fiber to mass loss, relative dynamic elastic modulus, and compressive strength gradually decreased with the addition of PVA fiber (>0.12 vol. %), while the contribution to flexural strength increased. The penetration depth of chloride ions positively correlated with the number of freeze-thaw cycles. The PVA fiber-reinforced concrete exhibited better chloride ion penetration resistance compared with that of the control concrete after freeze-thaw cycles. The concrete mixed with 0.12 vol. % PVA fiber exhibited the best chloride ion penetration resistance. © 2022 American Society of Civil Engineers.
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
语种	英语
出版者	American Society of Civil Engineers (ASCE)
WOS记录号	WOS:000811219300016
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158404]
专题	兰州理工大学
作者单位	1.School of Civil Engineering, Dalian Univ. of Technology, Dalian; 116024, China; 2.Engineering Research Center, The W. Ministry of Education for Civil Engineering of Disaster Prevention and Disaster Reduction, Lanzhou Univ. of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Jiangchuan,Chang, Jun,Qiao, Hongxia. Performance Degradation of Fiber-Reinforced Concrete under Freeze-Thaw Cycles and Its Resistance to Chloride Ion Penetration[J]. Journal of Materials in Civil Engineering,2022,34(8).
APA	Li, Jiangchuan,Chang, Jun,&Qiao, Hongxia.(2022).Performance Degradation of Fiber-Reinforced Concrete under Freeze-Thaw Cycles and Its Resistance to Chloride Ion Penetration.Journal of Materials in Civil Engineering,34(8).
MLA	Li, Jiangchuan,et al."Performance Degradation of Fiber-Reinforced Concrete under Freeze-Thaw Cycles and Its Resistance to Chloride Ion Penetration".Journal of Materials in Civil Engineering 34.8(2022).