| EIS study on corrosion evolution of chemical quenched rebar in concrete contaminated with chloride |
| J. Wei; J. H. Dong; W. Ke
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| 2012
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| 发表期刊 | Corrosion Engineering Science and Technology
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| ISSN | 1478-422X
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| 卷号 | 47期号:1页码:31-37 |
| 摘要 | The corrosion evolution of scaled rebar cooled by a chemical reagent FM in concrete immersed in 3.5% NaCl aqueous solution was studied by electrochemical impedance spectra and compared with bare rebar. The results show that the corrosion evolution process of FM cooled rebar consists of three stages during the immersion: the passive stage, the accelerated corrosion stage dominated through the charge transfer step and the steady corrosion stage dominated through the mass transfer step. The corrosion rate of FM cooled rebar reaches a steady rate (> 0.7 mu A cm(-2)) after 80 days. However, the corrosion rate of bare rebar always increases at all immersion times. After immersion for similar to 1 year, the corrosion rate of bare rebar is nine times larger of that of FM cooled rebar. Therefore, the corrosion resistance of the rebar has been improved significantly by applying the FM cooling process. |
| 部门归属 | [wei, j.; 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, 62 wencui rd, shenyang 110016, peoples r china.;jhdong@imr.ac.cn
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| 关键词 | Scaled Rebar
Corrosion Evolution
Eis
Concrete
Chloride
Electrochemical Impedance Spectroscopy
Passive Film
Reinforcing Steel
Neutral Solution
Iron
Carbonation
Behavior
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| URL | 查看原文
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/60333
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
J. Wei,J. H. Dong,W. Ke. EIS study on corrosion evolution of chemical quenched rebar in concrete contaminated with chloride[J]. Corrosion Engineering Science and Technology,2012,47(1):31-37.
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| APA |
J. Wei,J. H. Dong,&W. Ke.(2012).EIS study on corrosion evolution of chemical quenched rebar in concrete contaminated with chloride.Corrosion Engineering Science and Technology,47(1),31-37.
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| MLA |
J. Wei,et al."EIS study on corrosion evolution of chemical quenched rebar in concrete contaminated with chloride".Corrosion Engineering Science and Technology 47.1(2012):31-37.
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