괴재 고로슬래그 굵은 골재 사용에 따른 PHC-Pile용 콘크리트 최적 배합 도출에 관한 연구

A Study on the Optimal Concrete Mix-proportion Selection of PHC-pile by Using of Air-cooled Blast Furnace Slag Coarse Aggregate

In this study, a replacement ratio of blast furnace slag coarse aggregate and a water binder ratio by an optimum combination of PHC file was investigated. As a results, the target strength 78.5MPa was altogether satisfied in a mix proportion 28-G100-SG0 and W/B ratio 26 %. The surface rupture was generated in 28-G0-SG100 combination after curing with the autoclave. According to the result of measuring the ingredient, the majority were the MgOH2 hydrate.