Influence of chloride ion on depassivation of passive film on galvanized steel bars in concrete pore solution
文献类型：期刊论文
| 作者 | Zheng, Haibing1,2,3; Dai, Jian-Guo2; Li, Weihua1; Poon, Chi Sun2 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2018-03-30 |
| 卷号 | 166页码:572-580 |
| 关键词 | Chloride ions Passive film Corrosion Galvanized steel Concrete pore solution |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2018.01.174 |
| 通讯作者 | Li, Weihua(liweihue@qdio.ac.cn) ; Poon, Chi Sun(cecspoon@polyu.edu.hk) |
| 英文摘要 | This work aimed at studying the depassivation mechanism of the passive film on galvanized steel bar in concrete pore solution with different concentrations of chloride ion. The results showed that in a saturated Ca(OH)(2) solution, the critical chloride values for the depassivation of the passive films formed on galvanized steel bars and zinc metal specimens were 0.2 M and 0.3 M respectively. When the Cl- concentration was lower than the critical value, the donor density of the passive film increased and thus the protective property reduced with increasing the concentration of chloride ion, which could be interpreted by the point defect model (PDM). The corrosion products formed on the galvanized steel surface could inhibit the further ingress of the chloride ions and enhance the protective property, while such effect was not obvious for the zinc metal. (C) 2018 Elsevier Ltd. All rights reserved. |
| 资助项目 | Hong Kong Branch of National Engineering Research Center for Steel Construction[1-BBYP] ; Hong Kong Polytechnic University[1-ZVGE] ; National Science Fund for Distinguished Young Scholars[51525903] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000428491300053 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/158462]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Li, Weihua; Poon, Chi Sun |
| 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 |
| 推荐引用方式 GB/T 7714 | Zheng, Haibing,Dai, Jian-Guo,Li, Weihua,et al. Influence of chloride ion on depassivation of passive film on galvanized steel bars in concrete pore solution[J]. CONSTRUCTION AND BUILDING MATERIALS,2018,166:572-580. |
| APA | Zheng, Haibing,Dai, Jian-Guo,Li, Weihua,&Poon, Chi Sun.(2018).Influence of chloride ion on depassivation of passive film on galvanized steel bars in concrete pore solution.CONSTRUCTION AND BUILDING MATERIALS,166,572-580. |
| MLA | Zheng, Haibing,et al."Influence of chloride ion on depassivation of passive film on galvanized steel bars in concrete pore solution".CONSTRUCTION AND BUILDING MATERIALS 166(2018):572-580. |
入库方式： OAI收割
来源：海洋研究所
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