균열 자기치유 효과를 고려한 콘크리트 염화물 침투해석을 활용한 부식 개시시기 예측

초록

This study predicts the corrosion initiation time of cracked concrete structure using numerical analysis model of chloride penetration into concrete considering self-healing of crack. The results shows that the corrosion initiation time is considerably delayed when the crack self-healing effect is considered, and thus, the improvement of resistance to chloride attack of self-healing concrete cab be proven. Also, the service life of concrete structures may be underestimated if the crack self-healing effect is not considered.