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Confidence intervals, achieved confidence and data position according to the cement layer thickness for aged groups.
| Cement Thickness (µm) | CI for η | Achieved Confidence |
Position |
|---|---|---|---|
| 60 | (3.24; 8.42) | 73.68% | (8; 13) |
| (3.23; 8.84) | 80.53% | Interpolation | |
| (3.23; 9.72) | 88.47% | (7; 14) | |
| 120 | (3.71; 6.64) | 73.68% | (8; 13) |
| (3.45; 6.71) | 80.53% | Interpolation | |
| (2.90; 6.86) | 88.47% | (7; 14) | |
| 180 | (2.10; 3.10) | 73.68% | (8; 13) |
| (2.06; 3.27) | 80.53% | Interpolation | |
| (1.99; 3.64) | 88.47% | (7; 14) |
