Experimental Study on Properties of Rock-Cemented Coal Gangue-Fly Ash Backfill Bimaterials with Different Coal Gangue Particle Sizes

Figure 8

Fragment (chip) weight distributions of CGFB after failure. (a) Group A (0∼5 mm). (b) Group B (5∼10 mm). (c) Group C (10∼15 mm).

(a)

(b)

(c)