Applicability of Colormetric Method for Estimation of Chloride Penetration in Concrete Structure

콘크리트의 염화물 침투 특성 평가를 위한 변색법의 적용성

Silver nitrate colored method that measure easily penetration depth of chloride ion has been used, recently. But, characteristics of silver nitrate colored method hasn't examined well. Therefore, we are aim to examine characteristics of colored method. According to experiment results, when the colored method was applied in concrete, it is reasonable that $AgNO_3$ solution more than 0.05N concentration was sprayed. Chloride concentration difference in colored parts was about 20ppm when $AgNO_3$ of two concentration (0.05N, 0.1N) in concrete was sprayed.