Abstract: Taking fine iron tailings of Jinshandian as solidified subobject and the industrial solid waste X activated by the activator Y, Z as the curing agent, the impact of the technical conditions such as formulation of curing agent, aging temperature, curing method and molding pressure on the compressive strength and water resistance of the solidified blocks is investigated. The results show that when the reasonable mass ratio of the X,Y,Z is 8∶3.7∶1, the mass ratio of curing agent to tailsings is 12.7∶87.3 the aging temperature is 30 ℃ under the high-pressure steaming (180 ℃, 1 MPa), the compressive strength and water resistance of the solidified blocks is better improved and its natural curing is the worst. The suitable molding pressure for solidified blocks is 25 MPa.

Key words: Fine iron tailings, Solidification, Curing method, Compressive strength, Water resistance