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

Figure 2

SEM/EDS analysis of the raw materials. (a) Fly ash. (b) Aeolian sand. (c) Cement. (d) Quicklime.

(a)

(b)

(c)

(d)