Prediction of Reinforcement Corrosion based on Electrochemical Equivalent under Loading

武汉理工大学学报-材料科学版(英文版), 2010, 25(4): 708-711. doi: 10.1007/s11595-010-0076-1

^1, , ^2, , ^3, , ^4, , ^5,

1.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

2.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

3.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

4.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

5.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

基金项目: the Major Program of Beijing Municipal Natural Science Fonndation(8100001) the National Natural Science Foundation of China(50808005) Beijing talent innovation Talent innovation the National"11-5"Science and Technology Supporting Program(2006BAJ27B04)

Prediction of Reinforcement Corrosion based on Electrochemical Equivalent under Loading

TENG Haiwen ^1, , LI Yue ^2, , YANG Senmao ^3, , HUANG Ying ^4, , HUO Da ^5,

1.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

2.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

3.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

4.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

5.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

Keywords： corrosion current density

Experiment was carded 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.

参考文献

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Prediction of Reinforcement Corrosion based on Electrochemical Equivalent under Loading

参考文献