| 再碱化后不同锈蚀程度钢筋的电极化研究 |
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| 引用本文： | 屈文俊,古剑,张弛.再碱化后不同锈蚀程度钢筋的电极化研究[J].结构工程师,2012,28(4):109-114. |
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| 作者姓名： | 屈文俊 古剑 张弛 |
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| 作者单位： | 1. 同济大学建筑工程系,上海,200092
2. 浙江绿城建筑设计有限公司,杭州,310007 |
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| 基金项目： | 国家自然科学基金项目，"十一五"国家科技支撑计划项目，国家重点基础研究发展计划项目(973计划) |
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| 摘 要： | 通过不同锈蚀程度的钢筋再碱化后的电极化试验研究,采用线性极化法测定再碱化后钢筋的极化曲线,确定不同锈蚀程度钢筋的再碱化效果.研究发现,在钢筋未锈蚀或轻微锈蚀的情况下,再碱化技术可以使钢筋恢复钝化的状态,取得良好的修复效果;对于锈蚀较严重的钢筋,由于较厚锈层的存在,再碱化后的钢筋基体难以进入再钝化状态.根据试验结果,本文界定了再碱化技术的适用范围.
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| 关 键 词： | 钢筋锈蚀 电化学再碱化技术 线性极化法 适用范围 |
Study on Electric Polarization of Steel Bars in Different Corrosion Degrees after Realkalization |
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| QU Wenjun
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GU Jian
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ZHANG Chi.Study on Electric Polarization of Steel Bars in Different Corrosion Degrees after Realkalization[J].Structural Engineers,2012,28(4):109-114. |
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| Authors: | QU Wenjun GU Jian ZHANG Chi |
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| Affiliation: | 1.Department of Building Engincering,Tongji University,Shanghai 200092,China; 2.Zhejiang Greenton Architectural Design Co.,Ltd,Hangzhou 310007,China) |
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| Abstract: | Based on the experimental studies on electric polarization of steel bars in different corrosion degrees after realkalization,polarization curves of steel bars after realkalization were measured with linear polarization method.And the effectiveness of realkalization for steel bars in different corrosion degrees was determined. The results showed that the electrochemical realkalization would achieve good repassivation result in the situation that steel in concrete was clean or slight rust.However,due to the rust layer,repassivation state was difficult to achieve for steel bars severely corroded.According to the experimental result,the scope of realkalization application was defined. |
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| Keywords: | reinforcement corrosion electrochemical realkalization linear polarization method scope of real-kalization application |
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