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Corrosion Behavior of Steel Bar and Corrosive Cracking of Concrete Induced by Magnesium-Sulfate-Chloride Ions
Jin, Zuquan1; Zhao, Xia2; Zhao, Tiejun1; Liu, Ying1
2016-04-01
发表期刊JOURNAL OF ADVANCED CONCRETE TECHNOLOGY
卷号14期号:4页码:172-182
文章类型Article
摘要The evolution of steel bar and corrosive-crack propagation of reinforced concrete in three different solutions including MgSO4, Mg2+-SO42--Cl-, and seawater were examined using electrochemical impedance spectroscopy. Results showed that seawater had the most serious corrosion effect on steel bar in concrete. MgSO4 combined with chloride ions could accelerate the damage process of passive film, whereas Mg(OH)(2) and gypsum particles could be produced and deposited on the steel-bar surface to block the diffusion of sulfate and chloride ions into the passive film. The crack propagation of concrete in single chloride environment increased with time linearly, but the existence of MgSO4 in chloride solution could change the crack-propagation behavior of reinforced concrete from linear to nonlinear. The existence of Ca(OH)(2) in MgSO4 and MgSO4-NaCl solutions could not delay the initial corrosion time but reduce the corrosion rate of steel bar by 60%-85%.
DOI10.3151/jact.14.172
收录类别SCI
语种英语
WOS记录号WOS:000381473500006
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/135722
专题海洋腐蚀与防护研究发展中心
海洋地质与环境重点实验室
作者单位1.Qingdao Univ Technol, Coll Civil Engn, Qingdao, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
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GB/T 7714
Jin, Zuquan,Zhao, Xia,Zhao, Tiejun,et al. Corrosion Behavior of Steel Bar and Corrosive Cracking of Concrete Induced by Magnesium-Sulfate-Chloride Ions[J]. JOURNAL OF ADVANCED CONCRETE TECHNOLOGY,2016,14(4):172-182.
APA Jin, Zuquan,Zhao, Xia,Zhao, Tiejun,&Liu, Ying.(2016).Corrosion Behavior of Steel Bar and Corrosive Cracking of Concrete Induced by Magnesium-Sulfate-Chloride Ions.JOURNAL OF ADVANCED CONCRETE TECHNOLOGY,14(4),172-182.
MLA Jin, Zuquan,et al."Corrosion Behavior of Steel Bar and Corrosive Cracking of Concrete Induced by Magnesium-Sulfate-Chloride Ions".JOURNAL OF ADVANCED CONCRETE TECHNOLOGY 14.4(2016):172-182.
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