Experimental Study on Strengthening and Sealing Materials and Their Application in Coal Mines

Table 2

Experimental plans and results.

Class number	A	B	C	E	S
1	0.52	1.00	0.50	10.9	11.1
2	0.52	2.00	0.60	10.5	10.6
3	0.52	3.00	1.00	8.7	7.8
4	0.52	1.00	1.00	7.4	5.7
5	0.52	2.00	0.60	10.5	10.6
6	0.68	2.00	1.00	9.6	5.6
7	0.43	1.00	0.60	7.5	11.8
8	0.68	1.00	0.60	12.1	8.2
9	0.43	2.00	1.00	6.9	8.9
10	0.68	2.00	0.60	12.4	8.7
11	0.52	3.00	0.50	11.9	12.2
12	0.43	2.00	0.50	9.5	15.6
13	0.68	3.00	0.60	12.9	9.4
14	0.68	2.00	0.50	13.8	10.6
15	0.43	2.00	0.50	9.3	14.3
16	0.52	1.00	0.60	9.8	10.1
17	0.43	3.00	0.60	8.2	13.2

E denotes the expansion ratio and S is the compressive strength.