Experimental Study on the Development of High-Performance Concrete

고성능 콘크리트 개발에 관한 실험적 연구 제 1보 : 고미분말 슬래그 혼합시멘트의 물성

This paper describes some results of various tests which were carried out with varying the fineness of salg from 6000 to 10000$\textrm{cm}^2$/g and the slag content in cement from 30 to 50wt% for the perpose of utilizing finely ground blast-furnace slag as an ingredient for high-performance concrete. Test for heat of hydration, microstructural and hydration characteristics in paste, and fluidity and compressive strength in mortar were carried out. From these test results, it was found that, by properly determining the content and fineness of the slag, it is possible to manufacture high-performance concrete that has low heat of hydration, high early strength development, fine pore size and a highly densified microstructure.