Encarnado Negrais
LIMESTONE
DESCRIPTION (MACROSCOPIC)
Microcrystalline bioclastic reddish limestone with some rosy-red orange-yellowish spots and showing very thin stylolites.
PREVAILING APPLICATIONS
Facing slabs, in preference for interiors or for exterior covered zones.
PHYSICO-MECHANICAL PROPERTIES
| Compression breaking load | Kg/cm2 | 1427 |
| Compression breaking load after freezing test | Kg/cm2 | 1145 |
| Bending Strength | Kg/cm2 | 124 |
| Volumetric Weight | Kg/m3 | 2697 |
| Water absorption at N.P. conditions | % | 0.15 |
| Apparent porosity | % | 0.41 |
| Thermal Linear expansion coefficient | X10-6perº C | 4.3 |
| Abrasion Test | mm | 2.0 |
| Impact test: minimum fall height | cm | 55 |
CHEMICAL ANALYSIS
| SiO2 | 0.62% |
| AI2O3 | 0.00% |
| Fe2O3 | 0.14% |
| MnO | n.d. |
| CaO | 54.70% |
| MgO | 0.74% |
| Na2O | 0.04% |
| K2O | 0.04% |
| TiO2 | 0.00 |
| P.R | 43.40% |
| CO2 | 43.75% |
LOCATION
District
Lisboa
Municipality
Sintra