砂含泥量对混凝土性能的影响研究  

Study on influence of sand mud rate on concrete performance

作　　者：明阳[1] 李杰[1] 张凯峰[1] 周俊[1] 何学云[1] 

机构地区：[1]中建商品混凝土有限公司,湖北武汉430070

出　　处：《水泥工程》2014年第5期63-65,共3页Cement Engineering

摘　　要：在保证各标号混凝土配比和原材料不变的基础上,依次改变河砂含泥量(0%、2.0%、4.0%、6.0%),进行河砂不同含泥量对混凝土工作性能、外加剂掺量、坍落度损失以及抗压强度影响的试验研究,并对相应机理做出简要分析。试验表明,混凝土的扩展度、抗压强度均随含泥量的增加而减小,混凝土的外加剂掺量、坍落度损失随着含泥量的增加而增加。Given a fixed concrete mixture ratio, with the same raw materials, changing the mud rate in river sand at 0%, 2.0%, 4.0% and 6.0%, studied the influence of sand mud rate on the performance, admixture ratio, slump loss and compressive strength of concrete, and analysed in brief the Mechanism. The experiment shows that with the increase of mud rate, the expansion rate and compressive strength of concrete decreased, however, the mixture rate and slump ｜oss increased.

关 键 词：含泥量 混凝土 坍落度 扩展度 强度 

分 类 号：TQ172[化学工程—水泥工业]