Durability of reinforced concrete beams repaired with various repair materials

Abstract

This study was carried out to evaluate the performance of a few repair materials in resisting rebar corrosion. The experimental work was carried out in three stages. In the first stage, the repair materials were evaluated by conducting water permeability, chloride permeability and accelerated corrosion tests. In the second stage, these repair materials werte used to repair reinforced concrete beams and they were exposed to sodium chloride solution. The resistance to corrosion was evaluated by measuring half-cell potentials and corrosion rates of rebars using Tafel Plot technique. In the third stage, the effect of heatcool cycling on the corrosion resistance performance of the repair materials and repaired beams was undertaken.