Reliability analysis of fiber concrete freeze thaw damage based on the Weibull method

doi:10.1680/jemmr.19.00110

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Reliability analysis of fiber concrete freeze thaw damage based on the Weibull method
	Li, Jiangchuan 1; Qiao, Hongxia 2; Zhu, Feifei 1
刊名	EMERGING MATERIALS RESEARCH
	2020-03
卷号	9 期号:1 页码:70-77
关键词	composite materials modellingiproperty
ISSN号	2046-0147
DOI	10.1680/jemmr.19.00110
英文摘要	Due to special climatic and environmental factors in the cold regions of north China, the degradation of concrete durability caused by freeze thaw cycles has been a widespread concern among researchers. Freeze thaw damage has seriously affected the safe use and long-term operation of concrete structures. In this study, steel fiber and polypropylene fiber double-blended fiber concrete were selected for an investigation on the law of mass loss and relative dynamic elastic modulus changes from the rapid freeze thaw method. Based on the Weibull probability method, the damage model was established by using mass loss and relative dynamic elastic modulus as the index to carry out freeze thaw reliability analysis. The results show that both the mass loss and the relative dynamic elastic modulus increase gradually under the freeze thaw cycle, but the mass loss increase is more significant. The Weibull probability distribution can effectively describe the degradation law of the frost resistance of concrete specimens. In the reliability index, the mass loss is more sensitive than the dynamic elastic modulus. Through the test data, the reliability function established by this method can directly reflect the relationship between concrete reliability and the freeze thaw cycle, and it can also reflect the remaining life of concrete specimens.
资助项目	National Natural Science Foundation of China[51468039][51868044]
WOS研究方向	Materials Science
语种	英语
出版者	ICE PUBLISHING
WOS记录号	WOS:000523288400013
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/64192]
专题	土木工程学院
通讯作者	Qiao, Hongxia
作者单位	1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou, Peoples R China 2.Lanzhou Univ Technol, Western Minist Educ Civil Engn Disaster Prevent &, Engn Res Ctr, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Li, Jiangchuan,Qiao, Hongxia,Zhu, Feifei. Reliability analysis of fiber concrete freeze thaw damage based on the Weibull method[J]. EMERGING MATERIALS RESEARCH,2020,9(1):70-77.
APA	Li, Jiangchuan,Qiao, Hongxia,&Zhu, Feifei.(2020).Reliability analysis of fiber concrete freeze thaw damage based on the Weibull method.EMERGING MATERIALS RESEARCH,9(1),70-77.
MLA	Li, Jiangchuan,et al."Reliability analysis of fiber concrete freeze thaw damage based on the Weibull method".EMERGING MATERIALS RESEARCH 9.1(2020):70-77.