建筑工程施工中传统的混凝土搅拌方法一般是先将水泥、砂石粒料等干料拌合均匀后,再加规定比例的水搅拌即成。日本土建工程师发明了一种新型的混凝土搅拌法,称为“水泥裹砂搅拌法”简称“SEC”法。搅拌方法是:1、先将砂子拌水使砂子含水量在15%～25%;2、将湿砂和石子粒料搅拌均匀;3、将水泥投入其中搅拌均匀,这时水泥完全裹 The traditional method of concrete mixing in the construction of a building is generally to mix the dry materials such as cement and gravel aggregates together, and then add a prescribed proportion of water to mix and serve. Japanese civil engineers invented a new type of concrete mixing method called “cement sand mixing method” and “SEC”. The stirring method is as follows: 1. First, mix the sand with water to make the moisture content of the sand 15%-25%; 2. Mix the wet sand and stone granules evenly; 3. Put the cement into it and stir it evenly. Then the cement is completely wrapped.