Cost-Effective Treatment of Hemihydrate Phosphogypsum and Phosphorous Slag as Cemented Paste Backfill Material for Underground Mine

Figure 3

Auxiliary tests process of CPB-based HPG-PS. (a) Mass fraction of 66%; (b) mass fraction of 69%; (c) backfill body with the HPG/PS ratio of 6.

(a)

(b)

(c)