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파라핀 표면코팅을 적용한 과립형 지연제를 사용한 모르타르의 응결 특성
김준형 ( Kim Jun Hyeong ),이준석 ( Lee Jun Seok ),이승엽 ( Lee Seung Yeop ),최수호 ( Choi Su Ho ),김한샘 ( Kim Han Saem ),류재석 ( Ryou Jae Suk ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.1
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.