Investigation of the Sedimentation Property of Backfill Material on the Basis of Rheological Test: A Case Study of Iron Tailings

Table 3

Bingham rheological model regression for each mass concentration.

Mass concentration (%)	Regression equation	Yield stress (Pa)	Plastic viscosity (Pa·s)	Multiple correlation coefficient
73	τ = 2.9852 + 0.2309γ	2.9852	0.2309	0.9759
74	τ = 4.0780 + 0.2848γ	4.0780	0.2848	0.9876
75	τ = 8.6126 + 0.2558γ	8.6126	0.2558	0.9873
76	τ  =  8.9258 + 0.2933γ	8.9258	0.2933	0.9877
77	τ = 13.703 + 0.3159γ	13.703	0.3159	0.974
78	τ = 18.281 + 0.3246γ	18.281	0.3246	0.9909
79	τ = 27.470 + 0.3168γ	27.470	0.3168	0.9718
80	τ = 51.305 + 0.2329γ	51.305	0.2329	0.9217
81	τ = 55.709 + 0.3105γ	55.709	0.3105	0.9892
82	τ = 80.482 + 0.3947γ	80.482	0.3947	0.9865