내한제 및 단열거푸집에 의한 한중콘크리트 시공의 효율화에 관한 기초적 연구 (슬래브를 중심으로)

A Fundamental Study on the Effectiveness of Cold Weather Concreting Using Anti-freeze Agent and Insulating Form (Focused on the Slab)

This paper investigates insulating effects and strength properties of concrete under cold climate carrying out the experiment with insulating forms on the slab member. According to test results, under $-10^{\circ}C$ of outer temperature, the surface of concrete exposed to outer temperature goes below zero after 10hours since exposed. And, the surface of concrete covered with vinyl and blanket goes below zero after 42hours. However, the surface of concrete covered with insulating materials such as polystyrene foam does not drop below zero until 55hours. And, according to coring sample strength test, compressive strength cured with insulation shows much higher strength than no insulation curing condition and vinyl and blanket curing condition.