Study on Compaction Properties and Mechanism of Phosphate Tailings-clay
Phosphate tailings modifying clay can be used to prepare phosphate tailings-clay filler.The compaction properties of 11 different mix proportions of phosphate tailings-clay were ana-lyzed by the compaction tests,determining the optimal content of phosphate tailings.The com-paction mechanism was analyzed from the perspective of the gradation.The results show that the fitting results of cubic functions are generally better than those of quadratic functions.With the increase of phosphorus tailings content,the maximum dry density of the mixture firstly increases and then decreases,and the optimal moisture content continues to decrease.The phosphate tail-ings and clay have the complementary characteristics of the particles,and the phosphate tailings-clay formed by 40％phosphate tailings and 60％clay can form a skeleton compact structure.
phosphate tailingsclaycompaction curvemaximum dry densityoptimum water contentcompaction mechanism
万方数据
维普
