This study investigated the effect of cement type and ground granulated blast furnace slag (GGBS) on the mechanical properties and workability of grout for offshore PSC structures. As the replacement ratio of GGBS increased, the flowability of the grout increased and both intial and final setting times of grout was delayed regardless of cement type. However, the effects of GGBS on the bleeding of grout were different according to the type of cement: as the ratio of GGBS increased, less bleeding was observed for the grout with typeⅠ cement whereas higher bleeding was generated for the grout with type Ⅲ cement. However, there was no significant difference in their compressive strength at 28 day according the different replacement ratio of GGBS from 0 to 40%.

• 박기준(세종대학교 건설환경공학과) | PARK, Gi Joon
• 김동주(세종대학교 건설환경공학과) | KIM, Dong Joo 교신저자
• 문도영(경성대학교 토목공학과) | Moon, Do Young
• 김상현((주)제트콘코리아 기술연구소) | KIM, Sang Hyun