IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Numerical and experimental study of moisture and chloride transport in unsaturated concrete
Sun, Congtao1,2; Yuan, Liqiang3; Zhai, Xiaofan1,2; Qu, Feng3; Li, Yantao1,2; Hou, Baorong1,2
2018-11-20
Source PublicationCONSTRUCTION AND BUILDING MATERIALS
ISSN0950-0618
Volume189Pages:1067-1075
Corresponding AuthorSun, Congtao(sunct0830@sina.com)
AbstractBased on the establishment of a moisture transport model, a prediction model for chloride transport in unsaturated concrete was developed. The moisture transport model considers both the diffusion of water vapor and seepage of liquid water in concrete under drying-wetting conditions. The moisture transport model was verified by wetting and drying tests. In the transport model of chloride ions, both diffusion and convection were considered. Tests of specimens under drying-wetting cycles with four types of cycles were carried out to verify the chloride transport model. Furthermore, a new device was developed to mimic tidal and splash zones of a marine environment to achieve different time ratios of drying wetting. The measured results of chloride content corresponded with the simulated results. The results showed that the chloride content in concrete displayed no relationship with the ratio of drying and wetting times. The chloride content of concrete in mimicked tidal and splash zones significantly varied with height, especially in the surface layer of concrete, and the chloride content of concrete at the junction of the splash and tidal zones was the highest. (C) 2018 Published by Elsevier Ltd.
KeywordNumerical simulation Unsaturated concrete Chloride transport Moisture transport
DOI10.1016/j.conbuildmat.2018.08.158
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51108442]
WOS Research AreaConstruction & Building Technology ; Engineering ; Materials Science
WOS SubjectConstruction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS IDWOS:000449133200099
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/156590
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorSun, Congtao
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266000, Peoples R China
3.Hunan Univ Sci & Technol, Coll Civil Engn, Xiangtan 411100, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Sun, Congtao,Yuan, Liqiang,Zhai, Xiaofan,et al. Numerical and experimental study of moisture and chloride transport in unsaturated concrete[J]. CONSTRUCTION AND BUILDING MATERIALS,2018,189:1067-1075.
APA Sun, Congtao,Yuan, Liqiang,Zhai, Xiaofan,Qu, Feng,Li, Yantao,&Hou, Baorong.(2018).Numerical and experimental study of moisture and chloride transport in unsaturated concrete.CONSTRUCTION AND BUILDING MATERIALS,189,1067-1075.
MLA Sun, Congtao,et al."Numerical and experimental study of moisture and chloride transport in unsaturated concrete".CONSTRUCTION AND BUILDING MATERIALS 189(2018):1067-1075.
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