Mechanical Properties and Deterioration Instability of Filling Body with Gangue-Cement Material Based on AE Experiment

Table 1

Main artificial materials of making the sample.

Gangue material						Cement	Fly ash	Additive
Particle size/mm	0–5	5–10	10–15	15–20	20–25	Portland cement of 32.5	Class II fly ash: the residue of 0.045 mm square hole sieve is less than 20%, and the burning vector is less than 8%	Early strength agent plaster
Continuous coefficient	0.3	0.4	0.5	0.6	0.7
Discontinuous coefficient	10	20	30	40	50
Ratio between water and cementitious material	1.7		1.8		1.9		2.0	2.1
Cementitious material/kg·m^−3	50		100		150		200	250
Conventional proportion: the proportion of water, cement, fly ash, and gangue waste is 1.3 : 1 : 1 : 9. Cast a cylindrical sample of 50 mm 100 mm