A Study on the Corrosion Properties of Reinforcing bar and Performance Evaluation of Repair Material and Method for Reinforced Concrete Structure by Exposure Experiment under the Coastal and Normal Atmosphere Environment

해양 및 일반대기환경의 폭로실험에 의한 철근콘크리트구조물 보수재료.공법의 성능평가 및 철근의 부식특성에 관한 연구

In this study, for the establishment of the performance evaluation methods of repair material and method for reinforced concrete structure and the quality control standards of durability recovery method, the quantitative exposure data by exposure experiment under the coastal and normal atmosphere environment is accumulated and analyzed. Investigating and evaluating the result of exposure experiment during 30 months of exposure age under the coastal and normal atmosphere environment, carbonation depth and chlorideion penetration depth very little penetrated than cover depth. It seems reasonable to conclude that main cause of corrosion of reinforcing bar are inner chloride-ion and macro cell from the result of corrosion area and corrosion velocity. Accordingly, it is considered that fundamental data on the performance evaluation and quality control standards of repair material and method could be presented through continuous exposure test in the future.