Development of a high modulus paste fill using fine gold mill tailings

摘要: In the mining industry today there is some caution about using fine tailings as a backfill material. Traditionally, hydraulic has only used coarse fraction of tailings, excluding fines by classification process. With development paste fill, percentage being sent underground increased, but still remains low due to high percentages sand and gravel which usually make up these fills. Sand have been added fills aid pumpability increase fill strength stiffness. This leaves remainder destined for surface disposal. The main focus this paper evaluate what effect addition gold mill in form agglomerated pellets on stiffness characteristics total fill. purpose create modulus made entirely tailings. A constant slump design 20 cm (8 in) was each mix. Various binder dosages, curing periods combinations pellet ratio were studied. Raw density, cured compressive elasticity also examined. Results from above study indicate that (ATPF) superior characteristics. Compressive strengths enhanced while values tripled when compared same content consistency. ATPF minimizes disposal maximizes utilization useful