As interest in sustainable concrete increases, research on replacing cement with alternative materials has been actively conducted. Therefore, in this study, flexural and compressive tests were carried out using sustainable specimens fabricated by replacing part of cement with blast furnace slag and activated Hwang-Toh as alternative materials and control specimen. Based on the test results, the specimen with blast furnace slag showed the best load-carrying capacity. Compared with the control specimen, the specimen with activated Hwang-Toh indicated about 94.8~102.1% load-carrying capacity. Thus, it appears that the sustainable concrete can be practically used in the construction field.

• 이재진(강남대학교 건축공학과 4학년) | Lee, Jae Jin
• 하상수(강남대학교 건축공학과 부교수, 공학박사) | Ha, Sang su