Reliability analysis of fiber concrete freeze thaw damage based on the Weibull method
Li, Jiangchuan1; Qiao, Hongxia2; Zhu, Feifei1
2020-03
Source PublicationEMERGING MATERIALS RESEARCH
ISSN2046-0147
Volume9Issue:1Pages:70-77
AbstractDue 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.
Keywordcomposite materials modellingiproperty
DOI10.1680/jemmr.19.00110
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51468039][51868044]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000523288400013
PublisherICE PUBLISHING
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64192
Collection土木工程学院
Corresponding AuthorQiao, Hongxia
Affiliation1.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
First Author AffilicationLanzhou University of Technology
Corresponding Author AffilicationLanzhou University of Technology
First Signature AffilicationLanzhou University of Technology
Recommended Citation
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.
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