尾矿砂PVA水泥基复合材料抗压和抗弯性能试验研究  

Test Study on Compressive and Bending Properties of PVA Cement-based Composites with Tailings sand

作　　者：鲍文博[1] 张少峰[1] 曲利辉[1] 底高浩[1] 

机构地区：[1]沈阳工业大学,110870

出　　处：《混凝土与水泥制品》2013年第10期85-88,共4页China Concrete and Cement Products

摘　　要：研究了在不同尾矿砂替代率、纤维掺量和纤维长度对尾矿砂水泥基复合材料的增强和增韧作用。试验验结果表明,尾矿砂替代PVA水泥基复合材料中的细骨料工作性能和基本力学性能稳定,制备工艺满足要求;在纤维长度和掺量一定时,尾矿砂替代率为50%效果较好;纤维长度为12mm,掺量为26kg/m3时,PVA可以使尾矿砂PVA水泥基复合材料的延性明显增强。The different replacement ratio of tailing sand to cement as well as the reinforced and toughening roles of content and length of fiber in the cement-based composites with tailings sand are studied. The test results show that using tailing sand to replace PVA cement-based composites as fine aggregate, the workability and basic mechanics performance of the mixture is stable and can meet the requirements of the preparation technology; when the replacement ratio of tailing sand is 50% and the length and content of PVA fiber are fixed, the properties of the mixture are much better; when the length of PVA fiber is 12mm and the content of PVA fiber is 26kg/m3, the ductility of the tailing sand and PVA cement- based composites with tailing sand can significantly enhance.

关 键 词：尾矿砂 PVA纤维 力学性能 水泥基复合材料 

分 类 号：TU528[建筑科学—建筑技术科学]