Preparation and Mechanical Properties of Cemented Uranium Tailing Backfill Based on Alkali-Activated Slag

Table 4

Range analysis of UCS.

Age	Factor	Average UCS (MPa)				Range	Optimal scheme
		Level 1	Level 2	Level 3	Level 4
7 d	A	0.050	1.830	4.520	4.748	4.698	A4
	B	0.992	3.488	3.250	3.417	2.496	B2
	C	4.133	3.955	1.518	1.542	2.615	C1
28 d	A	0.103	10.975	8.065	8.863	10.872	A2
	B	4.650	5.775	8.197	9.383	4.733	B4
	C	6.952	6.950	7.573	6.530	1.043	C3