CONCRETE COMPOSITION NEEDLESS TO COMPACT FOR MASS CONCRETE STRUCTURE

摘要

PURPOSE:To secure flowability and material separation resistance and to obtain a concrete excellent in the physical properties in the hardened concrete such as strength. CONSTITUTION:A coarse aggregate having 40mm maximum size, a low-heat cement, 165kg/m<3> of water, limestone powder and a high-performance AE water reducing agent are mixed. When the volume of the cement is denoted by C, the volume of water by W and the volume of the limestone powder by L, 0.86<=(C+L)/W<=1.18 and 0.47<=L/C<=0.98 are fulfilled.