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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
Source PublicationJOURNAL OF ADVANCED CONCRETE TECHNOLOGY
Volume14Issue:4Pages:172-182
SubtypeArticle
AbstractThe 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
Indexed BySCI
Language英语
WOS IDWOS:000381473500006
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/135722
Collection海洋环境腐蚀与与生物污损重点实验室
海洋地质与环境重点实验室
Affiliation1.Qingdao Univ Technol, Coll Civil Engn, Qingdao, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
Recommended Citation
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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