CORROSION MONITORING OF REINFORCING STEEL IN CONCRETE BY POTENTIALDYNAMIC SCAN METHOD

摘要：

Reinforcement corrosion is the main cause of damage and early failure of reinforced concrete structures worldwide with subsequent enormous costs for maintenance,restoration and replacement. Many methods used today for assessment of reinforcement corrosion are based on electrochemical techniques that determine the free corrosion potential or polarization resistance. Most of these methods always consider the B value in Stern-Geary equation as constant,however B is changed with different condition. In this paper,potentialdynamic method has been used to monitor reinforcement corrosion rate. Corrosion rate of Q235 carbon steel has been measured with NaCl solution and concrete environment. From the fitting curve,B has been calculated real-time. By this way,the error of reinforcement corrosion rate is minimized.

关键词： Structure health monitoring Reinforcing steel Corrosion Potentialdynamic scan

作者: Guo-Fu Qiao Jin-Ping Ou

作者单位: School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,P.R. China School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,P.R. China School of Hydrau

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 1177-1181

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）