Abstract
This study experimentally examined the influence of patch repair materials on the electrochemical desalination method for reinforced concrete. The experimental parameters are the electrical resistivity and the repair area ratio of the patch repair materials. The evaluation items were the amount of desalination and the current density distribution at the surface of the rebar. In addition, an assessment method to estimate the amount of desalination by using core samples obtained from an existing member was proposed. Experiment results showed that the current density at the surface of a rebar increased near the boundary between the patch repair material and the concrete, and that the distribution of current density depended on the electrical resistivity and the repair area ratio of the patch repair materials. Moreover, the amount of desalination increased as the electrical resistivity of patch repair materials increased.
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