Experimental Study on the Mechanical Properties of C40 Self-Compacting Solid Ferrous Tailings Concrete

Through the experiments on the mechanical properties of the self-compacting solid ferrous tailings concrete, it studied the effect of tailings powders under various substitution rates upon the mechanical properties of C40 self-compacting solid ferrous tailings concrete. By experiments on the slump expansibility and expansion time T500 of the self-compacting solid tailings concrete, it also studied the effect on the workability of the ferrous tailings powder under various substitution rates. In the light of the experimental results, it provided that, the slump expansibility of the self-compacting solid ferrous tailings concrete enlarged by degrees with the increase of substitution rate of the ferrous tailings powder; the expansion time T500 shortened as the substitution rate of the ferrous tailings powder increased. The cubic compressive strength, the axis compressive strength, the splitting tensile strength as well as the plastic modulus of the self-compacting solid ferrous tailings concrete all inclined to decrease with the swell of substitution rate of the ferrous tailings powder.