不同岩石粉复合矿物掺合料对水泥胶砂性能的影

关键字：岩石粉,复合,矿物,掺合料,水泥

（1.中国建筑科学研究院，北京  100013；2.西南交通大学，四川 成都  610031；
3.陕西瑞德宝尔投资有限公司，陕西 西安  710000）

 
    摘要：采用片麻岩石粉、玄武岩石粉、花岗岩石粉和石灰石粉，分别与粉煤灰、矿渣粉复合，研究了复合矿物掺合料对水泥胶砂流动性和抗压强度的影响。结果表明：掺不同种类岩石粉的水泥胶砂流动度不相同，掺片麻岩石粉的流动度较小，掺粉煤灰对片麻岩石粉的流动性有所改善。粉煤灰在掺量较小的情况下，不同岩石粉对粉煤灰的敏感度不一样，玄武岩石粉的敏感度最大。
    关键词：片麻岩石粉；复合矿物掺合料；机制砂
    中图分类号：TU528.01        文献标识码：A        文章编号：1001-702X（2018）01-0105-04
 

Research on the effect of different kind of stone powder as composite mineral addition
on the performance of cement mortar
LI Yanxiu1，2，XIA Jingliang1，ZHOU Yongxiang1，LIU Kang3，YANG Yuanxi3
（1.China Academy of Building Research，Beijing 100013，China；2.Southwest Jiaotong University，Chengdu 610031，China；3.Shanxi Ruide Baoer Investment Co. Ltd.，Xi'an 710000，China）

    Abstract：The effects of composite additions on the fluidity and compressive strength of cement mortar were studied by using the gneiss powder，basalt powder，granite powder and limestone powder compounded with fly ash and ground slag. The results show that the fluidity with different kinds of stone powder is not the same，the fluidity is small with gneiss powder，the fly ash can improve the fluidity of gneiss powder. Under the condition of small amount of fly ash，the sensitivity of different stone powder to fly ash is not the same，basalt powder is the most sensitive stone powder.
    Key words：gneiss powder，composite mineral addition，manufactured sand