单项选择题
A.弹性阶段 B.屈服阶段 C.塑性阶段 D.颈缩阶段
A.32.5 B.42.5 C.52.5 D.52.5R
A.330±5 B.330±10 C.390±5 D.390±10
A.50±10% B.55±10% C.60±10% D.60±5%
A.4 B.5 C.6 D.7
A.水泥诤浆流动度 B.水剂砂浆工作性 C.减水率 D.坍落度增加值
A.450min B.420min C.460min D.435min
A.7.2% B.7.4% C.7.6% D.7.8%
A.97% B.96% C.95% D.结果无效，应重做
A.17.6% B.18.1% C.18.5% D.试验结果无效，应重做
A.17.0mm±2.5mm B.10.0mm±1.0mm C.20.0mm±3.0mm D.22.5mm±2.5mm