混凝土工程由于取材容易、工作性能好、强度高、耐久及耐火性好并可以浇筑成各种形状和尺寸而得到广泛的应用.随着建筑业的不断发展,用户对混凝土的要求也越来越高,不仅对混凝土的性能有所要求,而且还要求混凝土工程有光滑的表面,特别是对不加外装饰的工程要求更高.因此,应保证混凝土的施工质量,使其尽可能少地出现表面缺陷.“,”As the concrete projects based on easily,work performance,high-strength,durability,fire resistance,and can be poured into various shapes and sizes have been widely used.With the continuous development of the construction industry,users are demanding more and more concrete,not only on the performance of concrete required,but also concrete projects have smooth surface,especially not outside of the decoration project calls for high.How can we ensure that this quality of concrete construction,as little as possible so that the emergence of defects on the surface.