【摘要】 本文研究了在较低体积掺量下 (≤ 1% ) ,聚丙烯腈纤维对水泥基材料的抗干缩开裂性能的影响 ,同时分析了其作用机理。结果表明 ,在合理掺量下聚丙烯腈纤维可以有效的延缓水泥基材料裂缝的扩展并减小裂缝的张开度。更多还原

【Abstract】 In the paper the effects of polyacrylonitrile fiber added with the volume fraction not more than 1% on shrinkage cracking resistance of cement based composites were studied, and the mechanism was also analyzed. The results showed that polyacrylonitrile fibers with suitable volume fraction could effectively delay the cracking and decrease the crack width of cement based materials.更多还原