포장궤도를 위한 프리팩트 콘크리트의 내구특성

It had been already studied up on the strength characteristic of pre-packed concrete for paved track. the results also were represented. However, the study on estimation of durability about pre-packed concrete for paved track is in lack. Durability index could be estimated conducting such items as resistance of freezing-thawing, resistance of corrosion by acid, chloride and water flowing, electric current and reinforcing bar, environmental effects. Accordingly, in this study, durability index of pre-packed concrete for paved track is estimated though the various experiments which are resistance of chloride ion penetration and chemicals, absorption ratio of concrete, dry-shrinkage. Based on the results of various tests, they showed that the durability index of pre-packed concrete for paved track is excellent.