纳米材料具有粒径小、比表面积大、表面能高以及表面原子所占比例大等特点,纳米材料应用在水泥基材料中可改善其性能,因此纳米材料在水泥基材料中的应用成为当前研究的一个热点.本文综述了近几年国内外对纳米SiO2、CaCO3、TiO2、Al2O3等几种纳米材料在水泥基材料中的应用情况,结果表明:纳米材料可以有效的改善水泥砂浆混凝土的力学性能、降低孔隙率、促进其水化、提高耐久性能.并总结了纳米材料的改性机理和当前存在的一些急需解决的问题,提出了一些可行性建议.
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