不同岩石粉复合矿物掺合料对水泥胶砂性能的影响研究

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.%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 im-prove 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.