A.Ⅰ類砂石粉含量(按質(zhì)量計(jì))≤1.0%,泥塊含量(按質(zhì)量計(jì))為0% B.Ⅱ類砂石粉含量(按質(zhì)量計(jì))≤3.0%,泥塊含量(按質(zhì)量計(jì))為≤1.0% C.Ⅱ類砂石粉含量(按質(zhì)量計(jì))<3.0%,泥塊含量(按質(zhì)量計(jì))為<1.0% D.Ⅲ類砂石粉含量(按質(zhì)量計(jì))≤5.0%,泥塊含量(按質(zhì)量計(jì))為≤2.0%
A.10L B.20L C.25L D.30L
A.20.0mm B.25.0mm C.31.5mm D.40.0mm