Study on the Investigation Methods on Deterioration of Surface Finishing Paintings for Reinforced Concrete Urban Collective Housings

Part 3 Deterioration of Finishing Coating materials based on 10years outdoor exposure

Abstract

It is important to inspect and repair the deteriorated parts for maintenance of RC collective housings. It is also important to be carried out appropriate inspection of the coating materials in order to keep the beauty and protection of building structure. Part 3 reports the measurement results of deterioration in coating materials applied to concrete exposed to ISHIKARI, TSUKUBA, TOKYO and OKINOERABU considering the case of new construction and improvement. According to the results, the progress of chalking and decreasing of gloss degree in improved coating materials is slower than primal coating materials. However, color change of primal coating materials is smaller than improved materials.