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Chloride permeability of concrete at different ages.
| Type | Chloride Diffusion Coefficient (10−9 cm2/s) | Reduced Extent (%) | ||||||
|---|---|---|---|---|---|---|---|---|
| 3 d | 7 d | 28 d | 60 d | 3 d | 7 d | 28 d | 60 d | |
| REF | 15.6 | 15.4 | 10.8 | 8.8 | 0 | 0 | 0 | 0 |
| MC | 15.4 | 15.2 | 10.7 | 8.4 | 1.3 | 1.3 | 0.9 | 4.6 |
| SMC | 13.7 | 11.2 | 6.4 | 6.2 | 12.2 | 27.3 | 40.7 | 29.6 |
