纳米二氧化硅改性水泥基材料的研究进展

Research progress of nano SiO_2 modified cement based materials

纳米二氧化硅以其粒径小、比表面积大、表面吸附能力强等特性在改性水泥基材料性能方面有着良好的效果,现已成为众多学者研究的热点。文章对纳米二氧化硅在改性水泥基材料的水化硬化、耐久性和力学性能三个方面的研究进行了综述,并对纳米二氧化硅改性水泥基材料的机理进行简单概况,为今后深入研究其他纳米材料改性水泥基材料的机理提供研究基础。

Nano SiO2 with its small particle size, large surface area, strong surface adsorption ability, has a good effect in the aspects of modified cement-based materials and become the research focus for many scholars. This paper reviews the research of nano silica in three aspects of hydration,durability and mechanical properties of modified cement-based materials and the mechanism of modified cement-based materials with nanometer silica are summarized, which will provide the basis for future research on mechanism of other nanomaterials on modification of cement-based materials.