IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Influence of calcium ion in concrete pore solution on the passivation of galvanized steel bars
Zheng, Haibing1,2,3; Dai, Jian-Guo2; Poon, Chi Sun2; Li, Weihua1,4
2018-06-01
Source PublicationCEMENT AND CONCRETE RESEARCH
ISSN0008-8846
Volume108Pages:46-58
Corresponding AuthorPoon, Chi Sun(chi-sun.poon@polyu.edu.hk) ; Li, Weihua(liweihua@qdio.ac.cn)
AbstractThe addition of supplementary cementitious materials may affect the Ca2+ concentration and pH value of the concrete pore solutions. This work studied the influence of the calcium ion on the passivation of the galvanized steel bars in simulated concrete pore solutions with relatively low pH value of 12.5 and 13.15. The results showed that continuous protective layers were formed on the galvanized coating in the solutions with saturated Ca(OH)(2) at pH 12.5 and solutions with either KOH or NaOH at pH 13.15. The passive film formed in the saturated Ca(OH)(2) solution showed better protective properties than those in other solutions. In the solutions with lower concentrations of Ca2+ at pH 12.5, there was no obvious reaction and no protective layer was formed on the surface.
KeywordGalvanized steel Corrosion Concrete pore solution Passivation Protective property
DOI10.1016/j.cemconres.2018.03.001
Indexed BySCI
Language英语
Funding ProjectHong Kong Branch of National Engineering Research Center for Steel Construction[1-BBYP] ; National Natural Science Fund for Distinguished Young Scholars[51525903]
WOS Research AreaConstruction & Building Technology ; Materials Science
WOS SubjectConstruction & Building Technology ; Materials Science, Multidisciplinary
WOS IDWOS:000432505700006
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/159193
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorPoon, Chi Sun; Li, Weihua
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Sun Yat Sen Univ, Coll Chem Engn & Technol, Tangiiawan 519082, Zhuhai, 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
Zheng, Haibing,Dai, Jian-Guo,Poon, Chi Sun,et al. Influence of calcium ion in concrete pore solution on the passivation of galvanized steel bars[J]. CEMENT AND CONCRETE RESEARCH,2018,108:46-58.
APA Zheng, Haibing,Dai, Jian-Guo,Poon, Chi Sun,&Li, Weihua.(2018).Influence of calcium ion in concrete pore solution on the passivation of galvanized steel bars.CEMENT AND CONCRETE RESEARCH,108,46-58.
MLA Zheng, Haibing,et al."Influence of calcium ion in concrete pore solution on the passivation of galvanized steel bars".CEMENT AND CONCRETE RESEARCH 108(2018):46-58.
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