| IR降对混凝土中钢筋腐蚀电化学测量结果的影响 |
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| 引用本文： | 朱敏,何积铨,李成华,郑秋麟,任新广.IR降对混凝土中钢筋腐蚀电化学测量结果的影响[J].北京科技大学学报,2002,24(2):111-114. |
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| 作者姓名： | 朱敏 何积铨 李成华 郑秋麟 任新广 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京市腐蚀、磨蚀与表面技术重点实验室,北京,100083;2. 中国石油大港石化公司机动管理部,天津,300280 |
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| 基金项目： | 国家科技攻关项目;96-535-02-02; |
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| 摘 要： | 介绍了在混凝土介质中进行钢筋腐蚀电化学测量时产生的IR降对测量结果的影响,以及由此可能造成判断上的失误或评估上的错误.通过一种新的混凝土钢筋腐蚀的电化学测量方法(称为恒电流瞬断法),不仅可以有效的消除混凝土中的IR降影响,还可同时消除混凝土中钢筋表面发生的浓差极化的影响,得到只有电化学极化作用的稳态极化曲线.通过此方法测量得到的数据,可以仿照"稳态法"来计算电化学步骤的动力学参数.
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| 关 键 词： | 恒电流瞬断法 IR降 钢筋腐蚀 电化学极化 混凝土 |
| 修稿时间： | 2001年12月5日 |
Influence of IR Drop on the Results of Electrochemical Measurement of Rebar Corrosion in Concrete |
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| ZHU Min,HE Jiquan,LI Chenghua,ZHENG Qiulin,Ren Xinguang Material Science and Engineering School,UST Beijing,Beijing ,China The ministry of Management of Dagang Petrochemical Compang of China Petroleam,Tianjin ,China.Influence of IR Drop on the Results of Electrochemical Measurement of Rebar Corrosion in Concrete[J].Journal of University of Science and Technology Beijing,2002,24(2):111-114. |
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| Authors: | ZHU Min HE Jiquan LI Chenghua ZHENG Qiulin Ren Xinguang Material Science and Engineering School UST Beijing Beijing China The ministry of Management of Dagang Petrochemical Compang of China Petroleam Tianjin China |
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| Institution: | ZHU Min,HE Jiquan,LI Chenghua,ZHENG Qiulin,Ren Xinguang Material Science and Engineering School,UST Beijing,Beijing 100083,China The ministry of Management of Dagang Petrochemical Compang of China Petroleam,Tianjin 300280,China |
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| Abstract: | Describes the influence of the concrete JR drop on the results of electrochemical measure- ments carried out on reinforcing steel corrosion in concrete and the resulted errors in judgement or evaluation of rebar corrosion. Through a new electrochemical measuring method i.e transient switch method conducted on reinforcing steel corrosion in concrete, not only the influence of JR drop but also the influence of concen- tration polarization in rebar surface can be effectively eliminated. Thus polarization curves can be obtained under the influence of electrochemical polarization only. Kinetics parameters of the electrochemical processes can be calculated referring to stationary methods using the data obtained. |
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| Keywords: | transient switch method JR drop rebar corrosion electrochemical polarization concrete |
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