EXPERIMENTAL STUDY ON APPLICATION OF ELECTRODEPOSITION METHOD FOR DECREASING CARBONATION AND CHLORIDE PENETRATION OF CRACKED REINFORCED CONCRETE

The purpose of this study is to study the application of electrodeposition method in decreasing carbonation and chloride penetration of cracked reinforced concrete. Reinforced concrete specimens with the dimension of 10 x 10 x 37 cm are used. The specimens are loaded to cracking by third point loading and then are immersed in a salt solution. Three electrolytic solutions, namely, MgCl2, MgSO4 and ZnSO4 at 0.1, 0.2 and 0.5 mol/L concentrations are used. Direct current potential of 6V is applied between the reinforcing steel and an external electrode to force deposition. It is found that electrodeposition method can be used to decrease the carbonation and chloride penetration of cracked reinforced concrete.