Research Article
Development of Resonant Density Meter and Its Application in Tailings Backfilling
Table 2
The test values of the settlement experiment.
| | The ratio of ash and sand | The initial concentration (%) | The slurry weight after sedimentation (kg/m3) | The concentration of slurry after sedimentation (%) | The volume ratio of settling water to slurry (%) | The volume ratio of settled water to total water (%) |
| | Cement free | 58 | 2.1 | 77.0 | 30.0 | 38.0 | | 65 | 2.1 | 78.0 | 18.0 | 28.0 | | 72 | 2.1 | 78.6 | 7.0 | 13.6 |
| | 1 : 4 | 58 | 2.1 | 77.0 | 29.0 | 37.3 | | 65 | 2.1 | 78.0 | 18.0 | 28.0 | | 72 | 2.1 | 78.0 | 6.5 | 12.0 |
| | 1 : 6 | 58 | 2.1 | 76.7 | 27.0 | 35.0 | | 65 | 2.1 | 77.0 | 15.0 | 23.9 | | 72 | 2.1 | 78.0 | 5.7 | 10.8 |
| | 1 : 8 | 58 | 2.1 | 76.0 | 25.0 | 33.8 | | 65 | 2.1 | 77.0 | 15.0 | 23.8 | | 72 | 2.1 | 77.7 | 4.6 | 8.9 |
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