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坚持逐梦: 金币+100, 翻译EPI+1, ★有帮助 2014-05-02 12:47:52

Focused on tailings deposition, we selected a set of quasi-optimal solution on the basis of previous experiment to prepare curing agents to study the effect of curing agents on iron tailings treatment. The results showed that the 7d cured body's strength of the 55% concentration tailing slurry of 5-6% curing agent content is up to 0.49 MPa and not argillization when it encounters water . The cured body's higher shear strength, with a permeability coefficient less than 10-4cm / s, reached the safety requirements of stockpiling .The cured body of 10-14% curing agent content is of high early and later stage strength and 7d curing date strength is up to 1.8 MPa , 28d 2.9 MPa, which meet the requirements of the dam construction. The curing mechanism of iron ore tailings are also investigated through XRD and SEM characterization of the original tailings and tailing solidification forms.
Keywords: iron ore tailings; curing agent; curing stockpile

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