植物纤维增强水泥基复合材料研究进展

State-of-Art of Natural Fiber Reinforced Cementitious Composites

摘要:

在石油资源匮乏和碳减排的压力下，以天然植物纤维替代合成纤维，制备增强水泥基复合材料的研究受到广泛关注.植物纤维在水泥基材料中具有抗裂增韧、内养护、保温节能等作用，但是存在纤维性能退化和界面黏结弱化等问题.综述了国内外对植物纤维增强水泥基复合材料所采取的改善措施及效果，指出添加辅助胶凝材料和植物纤维表面包覆处理是解决上述问题的有效途径，并针对今后需要深入开展的相关研究提出建议.

Abstract:

Under the pressure of petroleum scarcity and carbon emission reduction，the research of cementitious composites reinforced with natural fibers instead of synthetic fibers had aroused considerable interest. Natural fibers could improve the crack resistance and provide the internal curing and heat preservation properties of cementitious composites. However， the degradation of natural fibers and the weak fiber-matrix interfacial bonding pose a great limitation to their practical application. The improvement approaches are intensively reviewed. It is suggested that the addition of supplementary cementitious materials and the surface coating treatment of natural fibers are effective ways to solve the problems. At last， some suggestions are put forward to carry out further research in this filed.