Experimental Study on the Creep Characteristics of Cemented Backfill in a Goaf under Water Pressure

Table 1

Cement strength grade and water–cement ratio.

Cement strength grade	42.50 MPa
	Water	Cement	Coal ash
Water–cement ratio	1.00	0.15	0.85
Weight of each material	1kg	0.15 kg	0.85 kg