Effects of Corn Stalk Fly Ash (CSFA) on the Mechanical and Deformation Properties of Cemented Coal Gangue Backfill

Figure 6

Correlation between shear strength and substitution rate at (a) 3, (b) 7, (c) 14, and (d) 28 days of curing age.

(a)

(b)

(c)

(d)