In this study, Retarder, which shows characteristics of delay hydration reaction and reduce hydration heat in concrete, was processed through granulation and paraffin coat to induce reaction by hydration heat. The prepared paraffin coated granular retarder was mixed with the mortar and the setting time was measured according to the desired temperature. As a result, it was confirmed that paraffin coated granular retarder which does not react during the concrete placing exhibits performance depending on the temperature.

• 김준형(한양대학교 건설환경공학과) | Kim, Jun Hyeong
• 이준석(한양대학교 건설환경공학과) | Lee, Jun Seok
• 이승엽(한양대학교 건설환경공학과) | Lee, Seung Yeop
• 최수호(한양대학교 건설환경공학과) | Choi, Su Ho
• 김한샘(한양대학교 건설환경공학과) | Kim, Han Saem
• 류재석(한양대학교 건설환경공학과) | Ryou, Jae Suk 교신저자