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Morphological parameters obtained with X-ray tomography.
| Samples | Specific Surface of the Voids | Closed Porosity | Open Porosity | Total Porosity |
|---|---|---|---|---|
| 1/mm | % | % | % | |
| Tensile samples | ||||
| 0%PR | 4.1 | 1.0 | 2.0 | 3.1 |
| 10%PR | 2.1 | 0.4 | 0.1 | 0.5 |
| 30%PR | 8.2 | 4.6 | 3.6 | 8.1 |
| Self-watering samples | ||||
| 0%PR–70%ID | 13.9 | 1.8 | 33.5 | 34.7 |
| 10%PR–70%ID | 7.5 | 2.4 | 6.3 | 8.5 |
| 0%PR–75%ID | 6.9 | 1.0 | 10.6 | 11.6 |
| 10%PR–75%ID | 6.2 | 2.6 | 4.1 | 6.6 |
| 0%PR–85%ID | 7.6 | 3.6 | 5.1 | 8.7 |
| 10%PR–85%ID | 3.7 | 2.2 | 0.3 | 2.5 |
