In response to the challenges of using a large amount of solid waste to prepare cementitious materials for tailings cemented filling projects,which often struggle with high costs and the demand for high performance on a large scale,this paper develops a solid waste based cementitious material mainly composed of mineral slag,steel slag,phosphogypsum,and cement clinker based on the characteristics of mercury cave gold tailings.The influence of each component on the cementitious material system is studied,and the optimal ratio of each solid waste in the cementitious material system is obtained.This material has been practically used in the Shuiyindong Gold Mine in Guizhou.Under the condition of ensuring filling quality,compared with cement,solid waste based cementitious materials exhibit good bonding performance on gold tailings,reduce the consumption of cementitious materials,the cost of filling materials is saved by 30yuan/m3,and the utilization amount of tailings is increased by 6000 tons.
维普
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