水泥基材料收缩及其导致开裂的研究进展

Research progress of shrinkage and shrinkage-induced cracking of cement-based materials

水泥基材料是土木工程中运用最广泛的建筑材料,但其收缩和开裂问题一直是工程界面临的难题。综述了水泥基材料的收缩机理、收缩类型、早期收缩试验方法,系统地分析了包括水胶比、矿物掺合料种类及掺量、内部相对湿度等因素对水泥基材料产生收缩开裂的影响,以提高水泥基材料的耐久性。

As a kind of construction materials, cement-based materials are widely used in the civil engineering,but the shrinkage and shrinkage-induced crack of the cement-based materials always are the important adverse factors in the engineering world.Reviewed the cracking analyzed the sensitive factors that affect the cracking, which included water-binder ratio, different mineral admixtures and inner relative humidity.As a result, it was of great significance in enhancing the durability of cement-based materials.