Abstract: In order to improve the comprehensive utilization rate of finegrained tailings in Gushan Mining Corporation,studied and analyzed the properties of finegrained tailings,and systematically studied the tailings content and calcination process system for the ceramsite packing density and apparent density porosity,water absorption,cylinder pressure strength and softening coefficient of different composition systems.The research results show that the tailings ceramsite property has better tailings content and calcining process for the whole tailings ceramsite,fine tailings+sludge ceramsite and fine tailings+sludge+pulverized coal ash ceramsite three kinds of composition system,and the three kinds of tailings ceramsite can be used as coarse aggregate instead of stone.

Key words: Finegrained tailings, Ceramsite, Bulk density, Barrel pressure strength, Softening coefficient