Patent ID: 8745957

Claim:
An induced macro-cell corrosion prevention method in construction repairs, comprising the steps of: removing a section of corroded concrete and steel reinforcement from an affected area in the middle of a steel-reinforced span of a concrete structure, leaving cut ends of a remaining section of the steel reinforcement separated by the removed section; installing a non-contaminated steel reinforcement between the cut ends of the remaining steel reinforcement, the non-contaminated steel reinforcement having opposing ends; attaching a non-conductive and electrically insulating buffer to each end of the non-contaminated steel reinforcement, the buffer being disposed directly between the non-contaminated steel reinforcement and the corresponding cut end of the remaining steel reinforcement, the buffer preventing metal to metal contact between the respective steel reinforcements; and filling the removed area with non-contaminated concrete; whereby, the buffer prevents formation of a macro-cell in order to prevent further corrosion.