Research Article
Effects of Fine Gangue on Strength, Resistivity, and Microscopic Properties of Cemented Coal Gangue Backfill for Coal Mining
Table 2
Proportions of the mix.
|
Mixture |
Portland cement (kg/m3) |
Water (kg/m3) |
Fly ash (kg/m3) | Gangue (kg/m3) | Fine (0–5 mm) | Coarse (10–15 mm) |
| M1 (20%) | 190 | 380 | 380 | 190 | 760 | M2 (30%) | 190 | 380 | 380 | 285 | 665 | M3 (40%) | 190 | 380 | 380 | 380 | 570 | M4 (50%) | 190 | 380 | 380 | 475 | 475 | M5 (60%) | 190 | 380 | 380 | 570 | 380 |
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