A.10 B.20 C.30 D.25
A.坍落度B.强度C.表观密度D.A+B
A.2.35 B.2.4 C.2.33 D.2.3
A.L≥5d+200mm B.L≥10d+200mm C.L≥5d+150mm
A.≥150% B.≥200% C.≥250% D.≥300%
