A Study on the Corrosion Characteristics of Steel Reinforcements Induced by Internal Chlorides in Concrete

콘크리트 내부염소이온에 의한 철근의 부식특성에 관한 연구

The corrosion of steel reinforcements in concrete is of much concern in recent years. The mechanism of corrosion, however, is not clear yet. This study is focused on the corrosion of steel induced by internal chlorides in concrete at early ages. To examine the critical concentration of steel, half-cell potential, chemical composition of expressed pore solutions of mortars and rate of corrosion area were observed with respect to additions of chlorides, types of binders, water-binders ratio.