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
发表期刊CEMENT AND CONCRETE RESEARCH
ISSN0008-8846
卷号108页码:46-58
通讯作者Poon, Chi Sun(chi-sun.poon@polyu.edu.hk) ; Li, Weihua(liweihua@qdio.ac.cn)
摘要The 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.
关键词Galvanized steel Corrosion Concrete pore solution Passivation Protective property
DOI10.1016/j.cemconres.2018.03.001
收录类别SCI
语种英语
资助项目Hong Kong Branch of National Engineering Research Center for Steel Construction[1-BBYP] ; National Natural Science Fund for Distinguished Young Scholars[51525903] ; Hong Kong Branch of National Engineering Research Center for Steel Construction[1-BBYP] ; National Natural Science Fund for Distinguished Young Scholars[51525903]
WOS研究方向Construction & Building Technology ; Materials Science
WOS类目Construction & Building Technology ; Materials Science, Multidisciplinary
WOS记录号WOS:000432505700006
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
被引频次:53[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/159193
专题海洋环境腐蚀与生物污损重点实验室
通讯作者Poon, Chi Sun; Li, Weihua
作者单位1.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
第一作者单位中国科学院海洋研究所
通讯作者单位中国科学院海洋研究所
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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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