Abstract
In this paper, the durability performance evaluation of surface coating, which is widely used as a repair method of concrete structures, applied to cracked concrete was experimentally examined. As a result, it has been understood that the thicker the coating material is, the better the mechanics performance of coating material is. The influence of crack generated in coating material on the corrosion of steel reinforcement due to combined deterioration (carbonation and salt damage) was also conducted. In case of the cracked coating material, chloride content of vicinity of steel reinforcement was higher than that of other area due to carbonation and cyclic wet-dry condition. Therefore, the distribution of chloride content and the corrosion of steel reinforcement were quite different according to whether the crack was generated in coating material or not.
