摘要
针对铁路路线中桥隧建筑物容易产生干缩开裂的问题展开讨论,研究了掺加芳纶纤维对修补混凝土干缩性能的影响。通过分析试验数据,发现掺加适量的芳纶纤维,可以有效减小水泥混凝土的干缩率。初步探讨了芳纶纤维减小水泥混凝土干缩率的机理。
It is about the shrinkage cracking always occurred in bridge and tunnel buildings of railway,the effect of filling some aramid fibers on concrete performance was stuidied.The analyzed results showed that filling some aramid fiber will enhance the anti-shrinkage performance of concrete obviously.The mechanism of aramid fibers for improving concrete performance was discussed.
基金
济南铁路局科技计划资助项目
编号为:G0503
关键词
芳纶纤维
水泥混凝土
干缩率
aramid fiber
mortar
the dry-shrinkage ratio
