| Number of test-pieces | Thickness (mm) | Material density, dry (kg/m3) | Material moisture (on site), of dry weight (%) | Bending strength MOR (MPa) | Bending stiffness MOE (MPa) |
Elements aged 7 days | 40 |
|
|
| 15.8 (2.1) | 8417 (1396.3) |
Elements after 13 years weathering | 25 |
|
|
|
|
|
Span of measured values |
| 25.9 - 33.0 | 1400 - 1530 | 12.0 - 18.4 | 14.8 - 19.1 | 5880 - 7906 |
Average value and standard deviation |
| 28.1 (2.95) | 1473 (57) | 15.9 (3,3) | 16.6 (1.7) | 7440 (975) |