Research Article
Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines
Table 11
Effect of the dosage of foam on the material.
| Sequence | Aggregate system | Water–cement ratio (%) | Foam | Gel slurry- foam ratio | Cement (%) | SC (%) | Fly ash (%) | Foaming multiple | Dosage (mL) |
| 1 | 48 | 32 | 20 | 45 | 15 | 200 | 1 | 2 | 48 | 32 | 20 | 45 | 15 | 400 | 0.5 | 3 | 48 | 32 | 20 | 45 | 15 | 800 | 0.25 | 4 | 48 | 32 | 20 | 45 | 15 | 1000 | 0.2 | 5 | 48 | 32 | 20 | 45 | 15 | 2000 | 0.1 |
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