中文摘要：

碳纳米管是近几年国内外纳米材料界研究的热点。在建设工程中,水泥基材料的耐久性问题日益突出。本文在介绍碳纳米管的结构性能和水泥基材料的耐久性问题的基础上,分析了多壁碳纳米管改善水泥基材料耐久性的可能性,得出拟解决的关键问题是多壁碳纳米管在基体中的均匀分散和其与基体的相容性以及水泥基复合材料的耐久特性和机理,为工程应用奠定基础。

英文摘要：

Carbon nanotubes have become hotspots in recent several years in the fields of nanomaterials.In construction engineering,the durability of the cement-based materials become salient.The characteristics and performances of carbon nanotubes（CNTs） and the durability of cement-based materials are introduced individually.With these understanding,the possibility of durability improved by multi-walled carbon nanotubes（MWNTs） is also analyzed.It is concluded that the key of the problem are the uniform dispersion of CNTs in the matrix,the compatibility between MWNTs and the matrix,the characteristics and the mechanism of the durability,lay the foundation for the engineering application.