煤矸石机制砂细度模数对胶砂性能影响研究-论文.pdf

设计研究 汪洪波，等：煤矸石机制砂细度模数对胶砂性能影响研究
中图分类号: 文献标志码：B 文章编号:1007-0389 (2021) 02-12-04 [D0l].32-1449/
煤矸石机制砂细度模数对胶砂性能影响研究:
汪洪波#孙学祥#姜生辉#孙星海！刘泽2
(，艮川,750002；.中国矿业大学(北京)化学与环境工程学院，匕京,100083)
摘 要：为了将煤矸石作为机制砂合理应用，使用煤矸石机制砂，研究了煤矸石机制砂的基本性质，设计了两种水胶比，配制
了 3个细度模数，研究了不同水胶比下煤矸石机制砂的细度模数对胶砂性能的影响。研究表明：水灰比较低时，煤矸石机制砂
的各项性能都相较于较高的水灰比都更好，尤其是在抗压强度方面。水灰比相同时，
最好。，细粒级填充作用对抗压强度的影响显著。
关键词：煤矸石；机制砂；细度模数；胶砂；强度
Study on tUe influence of fineness modulus of manufactured coal gangue sand on properties of mortar
Wang Hongbo1,Sun Xuexiang1, Jiang Shenghui1,Sun Xinghai2, Liu Ze2( Building Material Group Co.,Ltd., Yinchuan,
750002, CUina)
Abstrrci: la orOro te use coal dangue as machine-mane sang reasonably, the basic properties of coal xangue machine-mane sang wero
stupied. Two water bingee ratio a were eesiaaee, ang eigUi figeeess mopulye were prepareS. The influeecc of figeeess mopulye of cosI
Uangue machine-mane sang ou the properties of mortar unUee differesi water binger ratios was stupiep. TUe resaUs show thai: when the
water cement oUo is low, the properties of coal xaneue manufactures sang are better than thaf of high water cement ratio, especiany in
the ccmpressive strepath. W