玄武岩纤维聚合物水泥混凝土干缩性能试验研究  

Experimental Study on Dry Shrinkage of Polymer Emulsion Concrete Strengthened with Basalt Fiber

作　　者：李齐阳 王勇杰 宋云祥 

机构地区：[1]河南豫淮高速公路有限公司,河南信阳464400 [2]河南省交通科学技术研究院有限公司,河南郑州450006

出　　处：《粉煤灰综合利用》2014年第6期30-32,39,共4页Fly Ash Comprehensive Utilization

基　　金：河南省交通运输科技项目;项目编号2012D21

摘　　要：通过玄武岩纤维聚合物水泥混凝土干缩性能试验,研究了玄武岩纤维掺量和聚合物乳液掺量对混凝土干缩性能的影响。研究结果表明,单掺玄武岩纤维对混凝土的干缩存在负面作用,随着玄武岩纤维掺量的增加,混凝土的干缩率增大;单掺丁苯乳液聚合物时,随着丁苯乳液聚合物掺量的增加,混凝土的干缩率呈现明显的增大趋势;玄武岩纤维和聚合物乳液复掺使用可以减少混凝土的干缩,其改善效果优于两者单掺的情况,复掺对混凝土干缩起到了双重改性的效果。The experiments on drying shrinkage of concrete were tested,and the effect of basalt fiber and polymer emulsion on the drying shrinkage of concrete were studied. The results show that basalt fiber used alone has negative effects on the drying shrinkage of concrete,which means the more content of basalt fiber,the larger drying shrinkage rate of concrete gets. With the increase of polymer emulsion,the drying shrinkage rate of concrete shows a significant increasing trend. The effect of basalt fiber and polymer emulsion mixed on the drying shrinkage of concrete is better than basalt fiber and polymer emulsion used alone,compounded use of basalt fiber and polymer emulsion can play a dual modification effect on drying shrinkage of concrete.

关 键 词：玄武岩纤维 聚合物乳液 混凝土干缩性能 

分 类 号：TU528.571[建筑科学—建筑技术科学]