Strength Characteristics and the Reaction Mechanism of Stone Powder Cement Tailings Backfill

Figure 7

Uniaxial compressive strength of each group of specimens at the curing times of 3 d, 7 d, and 28 d (according to the mine information 7 d and 28 d compressive strengths need to reach 0.7 MPa and 1.4 MPa, respectively. A5 and B5 groups are not analyzed for compressive strength).