Against the background of solid waste disposal and comprehensive treatment of open-pit backfilling in a certain mine,due to the fact that the unclassified tailings of the mine are fine faction tailings and contain S and clay minerals that have a negative impact on the strength of the filling body,in order to select a cementitious material that is more suitable for the full tailings of the mine,select cement and glue-powder as two types of cementitious materials to contact the experimental study on the performance of filling slurry,results indicate:although SBT filling body have better characteristics at the aspect of bleeding and settling compared to glue-powder,in terms of the two key indicators of filling strength and fluidity,the performance of glue-powder is superior to that of cement and the cost is lower,showing that glue-powder is more suitable for solid waste disposal and backfilling treatment in this mine;through sensitivity analysis,it can be concluded that the strength of cemented by glue-powder is most sensitive to the ash sand ratio,followed by the curing age,and finally the slurry concentration.
关键词
固废处置/胶凝材料/料浆性能/充填体强度/敏感性
Key words
solid waste disposal/cemental materials/properties of slurry/strength of filling body/sensibility
维普
万方数据