论文部分内容阅读
针对鞍钢集团冶金工业水淬渣、钢渣、脱硫灰渣以及鞍钢矿山周围的生石灰、水泥熟料和外加剂等激发剂材料,进行满足鞍钢铁矿山阶段嗣后充填法开采替代水泥的全尾砂充填胶凝材料试验研究。探讨了硫酸盐类、碱类、盐类等不同类型激发剂及不同掺量对钢渣活性的激发效果,并研究了水泥熟料掺量、钢渣掺量对全尾砂胶凝材料性能的影响。结果表明,当水泥熟料为12%、脱硫石膏为2%、工业芒硝为1%、钢渣微粉掺量为20%,矿渣微粉为65%时,70%浓度灰砂比1∶6的全尾砂充填体28d强度可达到2.78MPa,满足阶段嗣后充填采矿要求,实现了钢渣废弃物的资源化利用。
According to Ansai Iron and Steel Group Metallurgical Industry water quenching slag, slag, desulfurization ash and Anshan Iron and Steel mine around the lime, cement clinker and additives and other activator materials to meet Anshan iron and iron mines later stages of filling alternative mining method of tailings filling Study on Cementitious Materials. The effects of different types of activators such as sulfates, alkalis and salts on the activity of steel slag were discussed. The effects of cement clinker content and steel slag content on the properties of the tailing cementitious material were also studied. The results show that when the cement clinker is 12%, the desulfurized gypsum is 2%, the commercial thenardite is 1%, the slag powder is 20% and the slag powder is 65% The strength of sand-filling body 28d can reach 2.78MPa, which meets the requirement of subsequent filling and mining of stage, and has realized the resource utilization of steel slag wastes.