Experimental Study of Bond Characteristics on Slab Reinforcement Corroded Before and After Casting

타설 전과 후에 부식시킨 슬래브 시험체의 철근 부착특성에 관한 실험적 연구

Recently, Sea-sand containing high levels of chloride is being applied to on reinforced concrete structures due to the exhaustion of river-sand and environmental problems, which affects directly corrosion of rebar in the RC structures. In this paper, characteristics of corroded rebar before and after casting were studied. Test results showed that bond strength of rebar corroded after casting was decreased with increase of corrosion level more rapidly than that of rebar corroded before casting.