VALONGO
Allgemeine Informationen
Trading names | VALONGO, PORTO-SCHIEFER, ARDOISE DE VALONGO, ARDOSIA DE VALONGO, LOUSA DE VALONGO |
Location where found | Valongo / Porto |
Country | Portugal | Coloring | black |
Structure | Largely without direction |
Availability | Available |
Gestein
Bezeichnung | Clay schist |
Alter | Ordovician |
Gesteinsgruppe | Sedimentary rocks |
Technische Eigenschaften
Polish quality | Only fine sanding possible. |
Suitable for flooring | Suitable. However, the high abrasion resistance of hard stone is not achieved |
Acid resistant | The stone is resistant to acid under usual circumstances. |
Technische Daten
Bulk density | 2,809 t/m³ |
Pressure resistance | 65,6 MPa |
Druckfestigkeit Frost | 49,4 MPa |
Abrasion resistance according to Italian standard | 8,3 |
Bending strength | 58,2 MPa |
Water absorption | 0,45 Gew.-% |
Porosity | 1,25 Vol.-% |
Thermische Dehnung | 0,8 mm/m/100K |
INSK – Internationale Naturstein-Kartei
INSK Number old | 6.6.1 |
INSK Number | 57.4 |
Recommendations for bonding and filling
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