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本文根据现场大体积混凝土浇注时常发生的水泥混用情况，选择了四种常用水泥作为基本水泥混合混用以后，对其技术性质进行了测定，并与基本水泥性质进行了比较。结果表明，混用水泥强度普遍较低，强度下降最大可达20％，平均低于基本水泥平均强度的5～10％。
In this paper, according to the situation of cement mixing often occurred in the site mass concrete casting, after selecting four common cements as the basic cement, their technical properties were measured and compared with the basic cement properties. The results show that the strength of the mixed cement is generally low, and the strength is reduced by up to 20%, which is lower than the average strength of the basic cement by 5 to 10%.