Experimental and Analytical Study on the Surface Strain and Internal Pressure Due to Corrosion of Reinforcement

철근부식에 의한 콘크리트의 표면변형률과 내부팽창압에 대한 실험 및 해석연구

Corrosion products of reinforcement in the concrete exerts pressure to the adjacent concrete that the concrete is subject to tensile stress. If the tensile strength exceeds the tensile strength, cracks are initiated around steel and propagates through concrete cover. Cracking of the cover means that the lifetime of the structure is ended. So the amount of corrosion which introduces crack in the concrete cover is a crucial factor in the reinforcement corrosion problem. In this study, relation between internal pressure and amount of corrosion are pursued by way of corrosion experiment and finite element analysis.