Corrosion Evaluation by Estimating the Surface Resistivity of Reinforcing Bar

The corrosion rate of steel embedded in concrete is evaluated using polarization resistance assumed on the boundary between concrete and steel. However, the previously established polarization resistance method requires the removal of the concrete cover to connect the steel with a wire lead, and it takes a long time for the measurement of corrosion. This study proposes a new method for the nondestructive testing of deterioration caused by...