Ruivina
CRYSTALLINE LIMESTONE
DESCRIPTION (MACROSCOPIC)
Dark grey “ruivina type” marble, fine-grained.
PREVAILING APPLICATIONS
Exterior and interior use. Furniture tops.
PHYSICO-MECHANICAL PROPERTIES
| Compression breaking load | Kg/cm2 | 930 |
| Compression breaking load after freezing test | Kg/cm2 | 952 |
| Bending Strength | Kg/cm2 | 270 |
| Volumetric Weight | Kg/m3 | 2715 |
| Water absorption at N.P. conditions | % | 0.05 |
| Apparent porosity | % | 0.14 |
| Thermal Linear expansion coefficient | X10-6perº C | 5.4 |
| Abrasion Test | mm | 2.6 |
| Impact test: minimum fall height | cm | 45-50 |
CHEMICAL ANALYSIS
| SiO2 | 1.07% |
| AI2O3 | 0.36% |
| Fe2O3 | 0.09% |
| MnO | vest. |
| CaO | 55.07% |
| MgO | 0.18% |
| Na2O | 0.05% |
| K2O | 0.12% |
| TiO2 | vest. |
| P.R | 43.42% |
| CO2 | 43.42% |
LOCATION
District
Évora
Municipality
Borba