Recently, the amount of the mineral admixture including fly ash and ground granulated blast-furnace slag was increased for the purpose of CO2 gas emission reduction in the concrete industry. However, in the case of korea, estimation model of strength development in concrete structural design code was prescribed a constant value according to cement type and curing method about the portland cement. therefore, the properties of strength development according to time of concrete using fly ash and ground granulated blast-furnace slag does not reflected estimation model of strength development. Accordingly, this paper was evaluated strength according to time on the concrete strength range using fly ash and ground granulated blast-furnace Slag and the strength development constant Bsc of concrete according to the kind of the mineral admixture and mixing ratio was proposed

• 최연왕(정회원, 세명대학교 토목공학과 교수) | Yun-Wang Choi 교신저자
• 박만석(정회원, 세명대학교 건설공학과 박사과정) | Man-Seok Park
• 정재권(정회원, 한국시설안전공단 특수교 통합유지관리센터 사원) | Jae-Gwon Jeong
• 최병걸(정회원, 세명대학교 건설공학과 박사과정) | Byung-Geol Choi
• 김경환(정회원, 세명대학교 건설공학과 박사과정) | Kyung-Hwan Kim