Table 4 Compressive Strength Test Results.
Iron tailings sand content /% | First group uniaxia compressive strength/MPa | Second group uniaxia compressive strength/MPa | Third group uniaxia compressive strength/MPa | Average /MPa | Std dev/MPa |
|---|---|---|---|---|---|
0 | 38.5 | 38.8 | 39.1 | 38.80 | 0.30 |
10 | 40.2 | 40.5 | 40.8 | 40.50 | 0.30 |
20 | 42.6 | 42.3 | 42.7 | 42.53 | 0.21 |
30 | 44.1 | 44.4 | 44.2 | 44.23 | 0.15 |
40 | 45.7 | 45.4 | 45.8 | 45.63 | 0.21 |
50 | 41.2 | 41.5 | 41.3 | 41.33 | 0.15 |
60 | 37.6 | 37.3 | 37.4 | 37.43 | 0.15 |
