| 混凝土中钢筋锈蚀的电化学阻抗谱特征研究 |
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| 引用本文： | 许晨,李志远,金伟良.混凝土中钢筋锈蚀的电化学阻抗谱特征研究[J].腐蚀科学与防护技术,2011(5):393-398. |
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| 作者姓名： | 许晨 李志远 金伟良 |
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| 作者单位： | 浙江大学结构工程研究所; |
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| 基金项目： | 国家自然科学基金项目(50920105806); 国家科技支撑项目(2006BAJ03A04、2006BAJ03A02)资助 |
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| 摘 要： | 关于混凝土钢筋锈蚀等效电路模型中各元件的物理意义理解不尽相同.为了对模型元件的物理意义给出合理解释,设计了由氯盐侵蚀和混凝土碳化导致钢筋锈蚀的两种加速试验.通过对钢筋锈蚀试块阻抗谱特征的分析研究,对模型元件的物理意义给出了合理解释.研究发现,氯盐锈蚀试块具有三段容抗弧,即三个时间常数;而碳化锈蚀试块阻抗谱与钝化钢筋试块...
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| 关 键 词： | 混凝土耐久性 钢筋锈蚀 电化学阻抗谱 线性极化 |
Electrochemical Impedance Spectroscopy Characteristics of Corrosion Behavior of Rebar in Concrete |
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| XU Chen,LI Zhi-yuan.JIN Wei-liang Institute of Structural Engineering,Zhejiang University,Hangzhou.Electrochemical Impedance Spectroscopy Characteristics of Corrosion Behavior of Rebar in Concrete[J].Corrosion Science and Protection Technology,2011(5):393-398. |
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| Authors: | XU Chen LI Zhi-yuanJIN Wei-liang Institute of Structural Engineering Zhejiang University Hangzhou |
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| Affiliation: | XU Chen,LI Zhi-yuan.JIN Wei-liang Institute of Structural Engineering,Zhejiang University,Hangzhou 310058 |
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| Abstract: | Understandings of the physical significance of elements in equivalent circuit model of rebar corrosion in concrete are not quite similar.In order to give a reasonable explanation, experiments of rebar corrosion in concrete induced by chloride penetration and carbonation were designed,and then the characteristics of electrochemical impedance spectroscopy(EIS) of test specimens were carefully examined.It was found from the test results that,for the rebar corrosion induced by chloride attack,three capacitance ... |
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| Keywords: | concrete durability rebar corrosion EIS linear polarization |
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