| 摘要 |
A process for the electrochemical treatment of reinforcing steel in concrete having embedded steel reinforcement (12) including applying and electroconductive material (14) to an exposed surface of the concrete to form a distributed electrode, and applying a DC voltage to said electroconductive material as a positive terminal, and to said embedded steel reinforcement, as a negative terminal, and characterised by effecting passivation of the embedded steel and/or by imparting a predetermined modification to the bond strength between said embedded steel and said concrete by applying said DC voltage to the terminals so as to impart a distributed current flow between said electroconductive material, as an anode and said embedded steel reinforcement as a cathode; and by continuing application of said DC voltage and said distributed current flow in accordance with a predetermined current flow/time treatment regime which is such that the flow of current per square metre of surface area of said embedded steel reinforcement that passes between said terminals within a predetermined time period lies within predetermined limits. |
