Research Article
Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines
Table 9
Experimental design of water–cement ratio.
| Sequence | Aggregate system | Water–cement ratio (%) | Foam | Gel slurry- foam ratio | Cement (%) | SC (%) | Fly ash (%) | Foaming multiple | Dosage (mL) |
| 1 | 48 | 32 | 20 | 25 | 10 | 200 | 1 | 2 | 48 | 32 | 20 | 35 | 10 | 200 | 1 | 3 | 48 | 32 | 20 | 45 | 10 | 200 | 1 | 4 | 48 | 32 | 20 | 55 | 10 | 200 | 1 | 5 | 48 | 32 | 20 | 65 | 10 | 200 | 1 | 6 | 48 | 32 | 20 | 75 | 10 | 200 | 1 | 7 | 48 | 32 | 20 | 85 | 10 | 200 | 1 |
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