Effects of Doping Glass Fibers on the Early Strength of Sand-Based Cemented Paste Backfill for Solid Wastes Disposal in a Coal Mine

Figure 9

Mechanical strength of SCPB with different curing ages (blank control group I). (a) I u-1 d. (b) Iu-3 d. (c) Iu-7 d. (d) Iu-14 d. (e) Iu-28 d. (f) Iu-60 d.

(a)

(b)

(c)

(d)

(e)

(f)