Abstract
It is known that durability of RC components are improved by application of finishing coating materials. However, it is not clear the water transfer properties in surface layer of concrete applied finishing coating material sufficiently. In this study, it was carried out numerical simulations on water transfer in concrete applied finishing coating material using diffusion model. According to the results, water content of surface concrete with finishing coating material is high in early stage of drying. And it is no difference between water content of concrete with finishing coating material and naked concrete after a long period.