Table 2 The pore structure characteristic parameters of concrete.
Characteristic parameters | C20 | C30 | C40 | C50 |
|---|---|---|---|---|
Porosity (%) | 24.19 | 20.15 | 14.59 | 11.73 |
Pore volume (ml/g) | 0.1282 | 0.1088 | 0.0900 | 0.0822 |
Pore area (m2/g) | 2.0578 | 7.3231 | 9.5481 | 12.1915 |
Specific surface area (m2/ml) | 16.0514 | 67.3079 | 81.6451 | 148.3150 |
Most probable pore diameter (nm) | 151.0040 | 40.2913 | 44.3119 | 21.0723 |
Critical aperture (nm) | 120.00 | 40.29 | 35.62 | 17.09 |
Average pore size (nm) | 190.9 | 48.6 | 40.8 | 23.0 |