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

Table 3

Doping ratios of glass fibers and the CPB materials.

Scheme	Glass fiber length (mm)	Glass fiber ratio (%)	Fly ash (%)	Aeolian sand (%)	Cement (%)	Quicklime (%)
I	0	0	47.5	39.5	8	5
II	6	1.0	46.5	39.5	8	5