漂珠代砂混凝土性能的试验研究  

Experimental study on the performance of drift beads for sand concrete

作　　者：董素芹[1] 

机构地区：[1]内蒙古农业大学职业技术学院,内蒙古包头014109

出　　处：《混凝土》2017年第7期96-98,共3页Concrete

基　　金：国家自然科学基金(11104362)

摘　　要：试验通过将不同比例的漂珠代替河砂配制混凝土,深入研究了漂珠代砂新型混凝土的性能。试验结果显示:漂珠的适量掺入能够在满足混凝土流动性、抗压强度要求的情况下,降低混凝土的表观密度和导热系数;漂珠代砂最佳比例为D组(3∶7),抗压强度为31 MPa,导热系数为1.06 W/(m·K),相对A组(普通混凝土)分别降低13.9%和43.6%,为漂珠代砂混凝土的推广使用做了铺垫。The research studied the performance of new concrete with drift beads for sand through mixing concrete with different proportions of drift beads instead of river sand.Experimental results showed that：the bulk density and thermal conductivity of concrete could be reduced with moderate amount of drift beads and the fluidity and compressive strength of concretemet requirements.The best proportion of drift beads for sand was D-Group（three to seven）.The compressive strengthof 31 MPa was reduced 13.9% compared with A-Group（normal concrete）.In the meantime,thermal conductivity of 1.06 W/（m·K）was reduced 43.6%.The research has provided foundation for use of drift beads for sand concrete.

关 键 词：漂珠 表观密度 力学性能 导热系数 

分 类 号：TU528.041[建筑科学—建筑技术科学]