초지연제를 이용한 매스 콘크리트의 수화열 및 부착강도 특성 = Properties of Hydration Heat and Adhesion Strength of Mass Concrete Using Super Retarding Agent

다국어 초록 (Multilingual Abstract)

Mass concrete is placed considering placing lifts in order to reduce the defects of qualities like the thermal cracks caused by hydration heat. But, construction joints occurred between placing lifts which cause the loss of strength, water tightness and unfavorable appearance. Therefore, in this paper, tests are carried out using concrete containing developed super retarding agent and plain concrete respectively in order to improve the qualities of mass concrete related to placing lift. Control of hydration heat and method to avoid placing lift are investigated. Adhesion strength between placing lift of the concrete containing super retarding agent is similar to that of the concrete without placing lift. Crack index of concrete by hydration heat is reduced to be a quarter compared to that of plain concrete without placing lift, and a half compared to that of plain concrete with placing lift.