The results show that a proper air-entraining agent to be added not only can increase strength of cement polystyrene board effectively, but also decrease its density.
结果表明：适量引气剂的加入不仅可有效提高水泥聚苯板强度，还可降低密度；
Entraining fly ash and mineral powder with high quality can increase the initial fluidity of cement mortar and the fluidity retention capacity.
掺加较优质的粉煤灰和矿粉有利于提高砂浆的初始流动性和流动性保持能力。
Entraining fly ash and mineral powder with high quality can increase the initial fluidity of cement mortar and the fluidity retention capacity.
掺加较优质的粉煤灰和矿粉有利于提高砂浆的初始流动性和流动性保持能力。
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