Research Article
Estimating Deterioration Rate of Some Carbonate Rocks Used as Building Materials under Repeated Frost Damage Process, China
Table 6
The decay constant (λ), half-life (N1/2), and coefficient of correlation (R) of point load index strength (Is (50)).
| | Rock type | Point load index strength, Is (50) (MPa) | | λ | N1/2 | R |
| | Limestone 1 | −0.002 | 346.5 | 0.977 | | Limestone 2 | −0.003 | 231.0 | 0.995 | | Limestone 3 | −0.005 | 138.6 | 0.966 | | Limestone 4 | −0.003 | 231.0 | 0.98 | | Limestone 5 | −0.003 | 231.0 | 0.98 | | Limestone 6 | −0.006 | 115.5 | 0.951 |
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