Research Article
Experimental Study and Application of Inorganic Solidified Foam Filling Material for Coal Mines
Table 8
Experimental design of the fly ash content.
| | Sequence | Aggregate system | Water–cement ratio (%) | Foam | Gel slurry- foam ratio | | Cement (%) | SC (%) | Fly ash (%) | Foaming multiple | Dosage (mL) |
| | 1 | 60 | 40 | 0 | 50 | 10 | 200 | 1 | | 2 | 57 | 38 | 5 | 50 | 10 | 200 | 1 | | 3 | 54 | 36 | 10 | 50 | 10 | 200 | 1 | | 4 | 51 | 34 | 15 | 50 | 10 | 200 | 1 | | 5 | 48 | 32 | 20 | 50 | 10 | 200 | 1 | | 6 | 45 | 30 | 25 | 50 | 10 | 200 | 1 | | 7 | 42 | 28 | 30 | 50 | 10 | 200 | 1 |
|
|
Note. The gelling agent contained 0.1% water reducer.
|
