In the work, HPC (High Performance Concrete) samples are prepared with 3 levels of W/B (water to binder) ratios of 0.37, 0.42, and 0.27 and 3 levels of replacement ratios of 0%, 30% and 50%. Several tests containing chloride diffusion coefficient, passed charge, and compressive strength are performed considering age effect of 28 days and 180 days. Chloride diffusion is more reduced in OPC concrete with lower W/B ratio, and GGBFS concrete with 50% replacement ratio shows significant reduction of chloride diffusion in higher W/B ratio. At the age of 28 days, GGBFS concrete with 50% replacement ratio shows more rapid reduction of chloride diffusion than strength development, which reveals that abundant GGBFS replacement has effective resistance to chloride penetration even in the early-aged condition.

• 박재성(한남대학교 건설시스템공학과, 석사과정) | Park,, Jae Seung
• 윤용식(한남대학교 건설시스템공학과, 석사과정) | Yoon, Yong Sik
• 권성준(한남대학교 건설시스템공학과, 부교수) | Kwon, Seung Jun 교신저자
• 이학수(한남대학교 건설시스템공학과, 교수) | Lee, Hack Soo