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

Figure 13

XRD patterns of the hydration products; (a) cement tailings backfill (CTB); (b) stone powder cement tailings backfill; (c) stone powder tailings backfill (SPTB). AFt represents ettringite; AFm represents monosulfate hydrate.

(a)

(b)

(c)