Technical Specifications
I.G.M.E (2015) Directory of Greek Ornamental and Structural Stones
PHYSICAL MECHANICAL PROPERTIES | AVERAGE VALUE* |
---|---|
Apparent density (EN 1936), kg/m³ | 2650 |
Open porosity (EN 1936), % vol. | 0.9 |
Water absorption at atmospheric pressure (ΕΝ 13755), % wt. | 0.3 |
Uniaxial compressive strength (ΕΝ 1926), MPa | 100 |
Flexural strength under concentrated load (ΕΝ 12372), MPa | 9.8 |
Breaking load at dowel hole (ΕΝ 13364), Ν | 1500 |
Abrasion resistance (ΕΝ 14157 - Β), mm³ | 10925 |
Rupture energy (ΕΝ 14158), Joule | 6 |
Frost resistance (ΕΝ 12371): Flexural strength under concentrated load (ΕΝ 12372) after 48 frost resistance cycles, MPa | 10.8 |
The values are indicative of the stone type in the region and are not connected to certain quarries.
Due to the nature of the rock (cobbles), exact percentages cannot be given for the mineralogical composition as the content of each mineral differs from section to section along the rock outcrop. The minerals observed are antigorite, chrysotile (fibrous), calcite, dolomite, actinolite, talc, chlorite, tremolite (fibrous) and opaque metallic minerals (chromite, magnetite).
CHEMICAL ASSAY | % IN DRY SUBSTANCE |
---|---|
SiO₂ | 13.50 |
Al₂O₃ | 0.70 |
Fe₂O₃ | 4.60 |
CaO | 31.80 |
MgO | 14.45 |
MnO | 0.10 |
TiO₂ | <0.05 |
K₂O | 0.35 |
Na₂O | 1.64 |
LOI | 32.55 |