关键词: 胶结材, 尾砂, 回填, 固化

Abstract: A new proper binding composition named as ASGL for the tailings binder with high early strength development and consistent evolution of later strength was designed by means of cement paste strength tests，and its stabilization effectiveness for lead-zinc tailings was examined through strength tests on cementing-tailing  stabilized mixtures.Results show that the compressive strength of binder can be 23.9，26.6，38.7 and 47.3 MPa respectively when ASGL of binder is under appropriate mix proportion with sulphate-aluminate cement 30%，granulated blast furnace slag 45%，natural anhydrite 20% and lime 5% at 1 d，3 d，7 d and 28 d.Under the same of solid paste content，the strength development of the stabilized ASGL-tailings is higher than that of PC32.5R，especially at the early stage.Therefore，it is much suitable for the application case of tailings back filling with requirement of high filling speed.

Key words: Binder, Tailings, Back filling, Stabilization