Failure Modes in Concrete Repair Systems due to Ongoing Corrosion

Figure 1

Possible locations of continued corrosion in concrete repair systems ((a) corrosion developing in the substrate due to incipient anode phenomenon at the perimeter of repair, (b) corrosion developing in the substrate at the bottom of the repair if the bar is half embedded in existing, chloride-contaminated concrete, and (c) corrosion developing in the repair material due to inadequate cleaning, restrained shrinkage cracking, and high permeability), adopted from [7].