众所周知,凡水泥混凝土拌和工艺,古今中外,无论是采用人工拌和法还是机械拌和法,都是一次拌和而成,即为常规拌和水泥混凝土的方法(简称一次法),但是,水泥混凝土的级配、强度和工艺,一直伴随着现代化水泥混凝土工程的日益发展和社会建设的需要,引起了世界各国专家、学者的重视和兴趣,专题研究了水 As we all know, where the cement mixing process, both ancient and modern, whether by artificial mixing or mechanical mixing method, are a mix, namely the conventional method of mixing cement concrete (referred to as a method), but the level of cement concrete , Strength and technology, has been accompanied by the growing development of modern cement concrete and social construction needs, attracted the attention and interest of experts and scholars from all over the world, the special study of water