作为建筑重要原材料之一——水泥,仍是我国目前紧缺物资。一些建设和施工单位,时时被水泥断档而困扰。有一种简便易行的方法,只要对混凝土搅拌方法稍加改动,就会收到节约水泥、增加混凝土强度的特殊效能。当今,混凝土搅拌,无论是预制构件厂还是施工现场、无论是采用自落式或强制式搅拌机,通常是将砂、水泥、碎石一次投入,随即加水搅拌成混凝土,这种一次投料法的弊端在于:因供水和搅拌不均匀,使部分水泥自成团粒,尽管这些团粒在搅拌中由于同内壁及骨料之间的相互撞击和摩擦, As one of the important raw materials for construction, cement is still a scarce material in China. Some construction and construction units are constantly troubled by cement stalls. There is a simple and easy method, as long as the concrete mixing method is slightly modified, it will receive the special effect of saving cement and increasing the concrete strength. Nowadays, concrete mixing, whether it is a prefabricated component factory or a construction site, whether it is a self-dropping type or a forced type agitator, is usually a sand, cement, and gravel input, and then added with water and stirred into concrete. This is a drawback of the one-time feeding method. It is because part of the cement is self-agglomerated due to uneven water supply and agitation, even though these aggregates are agitated due to the impact and friction between the inner wall and the aggregate.