Optimization Analysis of Mechanical Properties of Fly Ash-Based Multicontent Gasification Slag Paste Filling Material

Table 5

Analysis of the fitting degree of each model by the response surface method.

Model source	R^2 correction value	R^2 estimate	Remarks
Linear model	0.3915	0.0618	Recommended
2FI model	0.4352	Negative
Cubic model	0.9344	Negative