Research Article
Experimental Study and Application of a Novel Foamed Concrete to Yield Airtight Walls in Coal Mines
Table 1
Mix proportions for different densities of foamed concrete.
| | Number | Target density (kg/m3) | Cement (kg) | Water (kg) | Fly ash (kg) | Foaming agent (kg) | Foam volume (m3) | Fiber (kg) | Water-reducing agent (kg) | Coagulant (kg) | Thickener (kg) |
| | 1 | 250 | 178.57 | 89.29 | 17.86 | 1.45 | 0.98 | 1.43 | 1.79 | 5.36 | 2.68 | | 2 | 450 | 321.43 | 160.71 | 32.14 | 1.21 | 0.82 | 2.57 | 3.21 | 9.64 | 4.82 | | 3 | 650 | 464.29 | 232.14 | 46.43 | 0.99 | 0.67 | 3.71 | 4.64 | 13.93 | 6.96 | | 4 | 850 | 607.14 | 303.57 | 60.71 | 0.77 | 0.51 | 4.86 | 6.07 | 18.21 | 9.11 |
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