Preparation and Sealing Performance of a New Coal Dust Polymer Composite Sealing Material

Table 5

Range analysis of the influencing factors of 3-d compressive strength.

Level	Coal-dust content (%) (A)	Water-material ratio (B)	Cross-linking agent content (%) (C)
1	3.23	4.89	3.58
2	3.80	4.59	3.68
3	4.22	3.11	3.93
4	3.48	2.12	3.54
Range	0.99	2.77	0.40