国内外植物纤维增强水泥基复合材料的研究

The Research on Vegetable Fibers as Reinforcement for Cement-based Composites in China and Foreign Countries

自然界广泛存在的植物纤维的形态具有长径比大,比强度高,比表面积大等优点。纤维在抑制混凝土裂缝发展中具有重要的作用,研究开发植物纤维增强水泥基复合材料不仅能降低混凝土的造价,而且有利于环保和可持续发展,具有深远的意义。文章综述了植物纤维的性能与增强作用、在混凝土应用中的研究进展、发展前景和存在的一些问题。

The configurations of vegetable fibers that exist widely in the nature have many advantages： great length-diameter ratio, high specific strength, large specific area etc. Fibers play great important roles in restraining the development of concrete cracks. To study and exploit the vegetable fibers as reinforcement of cement-based composites can not only reduce the cost of the concrete but also be helpful to environmental protection and sustainable development. So it is obvious that the significance of investigating the composites is far-forth. This paper summarized the performance of vegetable fiber and its strengthen effect, the research progress of application in concrete as well as the develop prospect and some existing problems.