A Experimental Study on Evaluation of Anti-Corrosion Performance of Reinforced Concrete with Chloride and Inhibitor Using Tafel Extrapolation Method

타펠 외삽법을 이용한 NaCl 및 LiNO₂가 첨가된 철근 콘크리트의 방식성능 평가에 관한 실험적 연구

Corrosion of reinforced concrete embedded in concrete is a deterioration phenomenon due to intrusion of embodied or Airborne chloride ions. Corrosion of a embedded steel increases the volume of the rebar and causes damage to the structure such as cracking and peeling of the concrete. This causes penetration of various corrosive factors and accelerates the corrosion of reinforcing bars, which has a serious effect on the durability of the structure. Researches on the corrosion phenomenon of these rebars by electrochemical methods have been carried out for a long time, but it is a lack of research in Korea. Therefore, in this study, one of electrochemical experimental methods, Tafel extrapolation method, was used to evaluate the performance of reinforcing bars according to the amount of NaCl and LiNO₂ added to concrete.