Prediction of Reinforcement Corrosion based on Electrochemical Equivalent under Loading  

作　　者：腾海文 

机构地区：[1]College of Architecture and Civil Engineering, Beijing University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2010年第4期708-711,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China(No.50808005);the National "11-5" Science and Technology Supporting Program(No.2006BAJ27B04);the Major Program of Beijing Municipal Natural Sci-ence Foundation(No.8100001)and Beijing talent innovation

摘　　要：Experiment was carried out to simulate different loading level elements under coupling of stray current and 5% chlorine salt solution. When calculating corrosion of reinforcement, the influence of loading should be considered based on the first law of Faraday electrolysis. The current density of the corrosion was measured by the linear polarization resistance method. The function of corrosion current density was obtained by nonlinear fitting method, and the influence coefficient of loading level to electrochemical equivalent was obtained base on the function of corrosion current density. The experimental results show that the corrosion current density increases with stress ratio of concrete structures. The reinforcement corrosion weight can be calculated through the influence coefficients of electrochemical equivalent and the result is in line with the actual situation.Experiment was carried out to simulate different loading level elements under coupling of stray current and 5% chlorine salt solution. When calculating corrosion of reinforcement, the influence of loading should be considered based on the first law of Faraday electrolysis. The current density of the corrosion was measured by the linear polarization resistance method. The function of corrosion current density was obtained by nonlinear fitting method, and the influence coefficient of loading level to electrochemical equivalent was obtained base on the function of corrosion current density. The experimental results show that the corrosion current density increases with stress ratio of concrete structures. The reinforcement corrosion weight can be calculated through the influence coefficients of electrochemical equivalent and the result is in line with the actual situation.

关 键 词：corrosion current density electrochemical equivalent loads level PREDICTION 

分 类 号：TU511.32[建筑科学—建筑技术科学]