【简答题】某建筑公司近期混凝土强度的30组统计资料如下(单位:MPa):27.65,26.43,38.42,38.22,36.54,37.42,33.16,34.18,36.87,34.2,26.1,35.7,26.54,36.73,43.57,26.87,30.2,29.8,34.2,37.6,40.8,42.65,35.4,30.52,36.7,31.3,32.75,30.52,32.2,25.96。(...
【简答题】在实验室配制的混凝土配合比为1∶1.72∶3.19,水灰比W/C=0.5,每m 3 混凝土水泥360kg。现场实测砂子含水量5%,石子含水量8%。采用350L自落式搅拌机,进料与出料容积比1∶0.65,水泥为袋装水泥。试求:(1)该混凝土的施工配合比;(2)每拌混凝土投料各多少。