Research Article
Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines
Table 10
Effect of expansion ratio 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 | 5.2 | 200 | 1 | | 2 | 48 | 32 | 20 | 45 | 8.1 | 200 | 1 | | 3 | 48 | 32 | 20 | 45 | 11.7 | 200 | 1 | | 4 | 48 | 32 | 20 | 45 | 15.1 | 200 | 1 | | 5 | 48 | 32 | 20 | 45 | 18.1 | 200 | 1 |
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