The results of research work show that the values of sand rate , aggregate grading , paste content and mineral admixtures control the degree of tightness pile up and the workability of fresh concrete , furthermore , they determined the mechanics performance and the durability of self - compacting concrete 研究表明,砂率、集料级配、水泥浆量、矿物掺合料等因素的取值决定了免振捣混凝土的紧密堆积程度及新拌混凝土的工作性能,从而进一步决定了免振捣混凝土的物理力学性能及耐久性能。