Corrosion Evolution of Reinforcing Steel in Concrete under Dry/Wet Cyclic Conditions Contaminated with Chloride

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	Corrosion Evolution of Reinforcing Steel in Concrete under Dry/Wet Cyclic Conditions Contaminated with Chloride
	J. Wei; X. X. Fu; J. H. Dong; W. Ke
	2012
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	28 期号:10 页码:905-912
摘要	The corrosion evolution of rebar in concrete was monitored by electrochemical impedance spectroscopy (EIS) under dry/wet alternated accelerated corrosion test. Four stages with different dynamic characteristics were observed during the corrosion evolution. They were passive stage, local corrosion controlled by the charge transfer step, accelerated corrosion controlled by the mass transfer step, and constant rate corrosion controlled by the mass transfer step through a barrier layer. X-ray diffraction (XRD) analysis showed that the corrosion product of rebar in mortar was composed of alpha-FeOOH, gamma-FeOOH and Fe3O4. The corrosion mechanisms of all four stages were discussed and the corrosion reactions were proposed according to the corrosion product and corrosion evolution characteristics.
部门归属	[wei, j.; fu, x. x.; dong, j. h.; ke, w.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;dong, jh (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;jhdong@imr.ac.cn
关键词	Rebar Concrete Electrochemical Impedance Spectroscopy (Eis) Corrosion Evolution Electrochemical Impedance Spectroscopy Carbonation Threshold Behavior Eis
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60334
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Wei,X. X. Fu,J. H. Dong,et al. Corrosion Evolution of Reinforcing Steel in Concrete under Dry/Wet Cyclic Conditions Contaminated with Chloride[J]. Journal of Materials Science & Technology,2012,28(10):905-912.
APA	J. Wei,X. X. Fu,J. H. Dong,&W. Ke.(2012).Corrosion Evolution of Reinforcing Steel in Concrete under Dry/Wet Cyclic Conditions Contaminated with Chloride.Journal of Materials Science & Technology,28(10),905-912.
MLA	J. Wei,et al."Corrosion Evolution of Reinforcing Steel in Concrete under Dry/Wet Cyclic Conditions Contaminated with Chloride".Journal of Materials Science & Technology 28.10(2012):905-912.