A.0.01,0.1,0.1,0.1,0.1B.0.1,0.01,0.1,0.1,0.1C.0.1,0.1,0.01,1,0.1D.0.1,0.1,0.01,0.1,0.1
单项选择题依据GB T14684-2011标准要求,2区砂0.6mm累计筛余在()
A.16%-39%B.16%-40%C.41%-70%D.71%-85%
单项选择题依据GB T14684-2011标准要求,砂浆用砂()筛的累计筛余应为0。
A.9.50mmB.4.75mmC.2.36mmD.1.18mm
单项选择题依据GB T14684-2011标准要求,做砂含泥量试验时鼓风干燥箱的温度应控制在()
A.105±5℃B.110±5℃C.110±10℃D.105±10℃
单项选择题依据GB T14684-2011标准要求,按细度模数分下列哪个属于中砂()
A.3.0-2.3B.2.5-3.1C.3.1-3.7D.2.6-3.2
单项选择题依据GB T14684-2011标准要求,砂按产源分为()两类。
A.天然砂、人工砂B.山砂、海砂C.河沙、湖砂D.黄胶砂、黑湖砂