Effects of electrochemical chloride extraction on the bonding properties of corroded reinforced concrete by the anode of magnesium phosphate cement bonding carbon fiber-reinforced plastics (CFRP)

2nd International Conference on Mechanical Engineering and Applied Composite Materials

机械制造;材料工程

Hao, T.Y.^1 ; Lin, H.^2 ; Li, Y.^2 ; Zhao, C.^2

Central Research Institute of Building and Construction Co., Ltd, 100088, China^1

Key Laboratory of Urban Security and Disaster Engineering, MOE, Beijing University of Technology, 100124, China^2

关键词: Bonding property;    Bonding strength;    Carbon fiber reinforced plastics (CFRP);    Chloride removal;    Corrosion ratio;    Electrochemical chloride extraction;    Interfacial bonding;    Magnesium phosphate cement;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/544/1/012031/pdf
DOI  :  10.1088/1757-899X/544/1/012031

来源: IOP

【 摘 要 】

This paper studied the effects of electrochemical chloride extraction (ECE) on the bonding properties of corroded reinforced concrete with the anode of Magnesium phosphate cement (MPC) bond CFRP. The results indicated that ECE can efficiently remove the chloride ions in the concrete. The interfacial bonding properties of steel-concrete decreased with the increase of chloride removal current density. Proper corrosion ratio of steel bars can reduce the bonding strength loss caused by ECE treatment.