A.100mm,7d B.100mm,28d C.150mm,7d D.150mm,28d
A.硅酸三鈣 B.硅酸二鈣 C.鋁酸三鈣 D.鐵鋁酸四鈣
A.黏聚力較高,內摩擦角較小 B.黏聚力較輕,內摩擦角較大 C.黏聚力較高,內摩擦角較大 D.黏聚力較低,內摩擦角較小