本文以泥集碎石掺量、细砂掺量、外加剂掺量、水胶比及用水量等因素为变量,设计五因素四水平的L16(45)正交试验,以混凝土坍落度和强度为考核指标。结果表明:外加剂掺量对混凝土坍落度的影响相对较大,其次是用水量和细砂掺量;外加剂掺量对混凝土强度的影响相对较大,其次是泥集碎石掺量和用水量。 In this paper, L16 (45) orthogonal experiment with five factors and four levels was designed with the variables of the amount of grit-gravel, the amount of fine sand, the content of admixture, the ratio of water to binder and the amount of water used. Strength for the assessment indicators. The results show that the influence of admixture content on concrete slump is relatively large, followed by water and fine sand content; admixture content of concrete strength is relatively large, followed by the volume of mud aggregates and Water consumption.