[Retracted] Experimental Study on Mineral Solid Waste Green Grouting Material Based on Electromagnetic Characteristic Detection

Table 16

Statistical table of the influencing factors of the 7 d electrical characteristics.

	Ratio of water to modified phosphogypsum powder A	Percentage of cement content in total amount of modified phosphogypsum and marble powder B (%)	Percentage of marble powder in modified phosphogypsum powder C (%)	Percentage of steel fiber content in phosphogypsum powder D (%)	Fineness of marble powder E
Primary and secondary order	D > A > C > E > B
Optimal level	A1	B1	C4	D3
Optimal combination	A1 B1 C4 D3E1