Research on concrete using activated Hwang-Toh is intensively conducted to protect environment. Therefore, in this study, the effect of activation of Hwang-Toh on strength was investigated through flexural and compressive tests. The specimen made by replacing part of cement with inactivated Hwang-Toh showed strength 55~61% of the control specimen. However, the specimen with activated Hwang-Toh as alternative material indicated load-carrying capacity 76~102% in comparison with the control specimen. Hence, concrete with activated yellow soil can be use in the construction market.

• 김정안(강남대학교 건축공학과 4학년) | Kim, Jeong Ahn
• 하상수(강남대학교 건축공학과 부교수, 공학박사) | Ha, Sang su