Mrákotín I
- Quarry
- Stone appearance
- Petrographic examination
- Physical properties
- Frost resistance
- Particle size distribution by image analysis
- Chemical and phase composition
- Notes and literature
Physical properties
| Parameter | Number of measurement | Unit | Value | Standard deviation | Coefficient of variation [%] |
|---|---|---|---|---|---|
| Apparent density | 6 | kg/m3 | 2590 | 1 | 0,03 |
| Real density | 2 | kg/m3 | 2670 | - | - |
| Open porosity | 6 | % | 2,1 | 0,019 | 0,9 |
| Total porosity | výpočtem | % | 3,1 | - | - |
| Apparent porosity | výpočtem | % | 2,0 | - | - |
| Water absorption | 6 | % | 0,76 | 0,024 | 3,1 |
| Water absorption coefficient | 3 | g.m-2.s-1/2 | 6,7 | 0,24 | 3,7 |
| Linear thermal expansion | 8 | 106.K-1 | 7,3 | 0,93 | 12,7 |
| Compressive strength | 10 | MPa | 159,7 | 10,7 | 6,7 |
| Flexural strength | 10 | MPa | 5,2 | 0,6 | 11,5 |
| Abrasion resistance | 1 | mm | 20,5 | - | - |
