Table 4.

Cementation strength of different ratios of cemented filling slurry at different ages.

Concentration	Ratio	Age	Fitting Result	Correlation
71%	5:5	3	$y=42.5\times 0.722\times 0.066\times e^{x1}\times {x2}^{-1.19}$	0.76
71%	5:5	7	$y=42.5\times 0.722\times 0.77\times e^{x1}\times {x2}^{-2.78}$	0.92
71%	5:5	28	$y=42.5\times 0.722\times 0.731\times e^{x1}\times {x2}^{-2.40}$	0.98
71%	4:6	3	$y=42.5\times 0.701\times 0.055\times e^{x1}\times {x2}^{-1.1}$	0.77
71%	4:6	7	$y=42.5\times 0.701\times 0.58\times e^{x1}\times {x2}^{-2.56}$	0.95
71%	4:6	28	$y=42.5\times 0.701\times 0.56\times e^{x1}\times {x2}^{-2.22}$	0.98
71%	3:7	3	$y=42.5\times 0.698\times 0.053\times e^{x1}\times {x2}^{-1.21}$	0.78
71%	3:7	7	$y=42.5\times 0.698\times 0.7\times e^{x1}\times {x2}^{-2.9}$	0.88
71%	3:7	28	$y=42.5\times 0.698\times 0.51\times e^{x1}\times {x2}^{-2.32}$	0.98

Notes: ratio: the weight ratio of yellow phosphorus slag to tailings.