混凝土是一种由砂石骨料、水泥、水及其他外加材料混合而成的非均质脆性材料。当前在钢筋混凝土民用建筑物中,现浇混凝土楼板出现变形裂缝的现象较为普遍,已成为商品房质量纠纷、投诉的热点问题,它不仅影响使用功能,有损外观,而且破坏结构的整体性,降低其刚度,引起钢筋腐蚀,影响持久性强度和耐久性。本文根据作者多年从事建 Concrete is a heterogeneous, brittle material that is a mixture of gravel aggregates, cement, water and other materials. Currently in the reinforced concrete civil buildings, cast-in-place concrete floor deformation cracks are more common, has become a commercial real estate quality disputes, complaints hot issues, it not only affects the use of function, the appearance of damage, but also to undermine the integrity of the structure and reduce Its stiffness, causing corrosion of steel, affecting the durability of strength and durability. This article is based on the author for many years to build