Kuru Grey
|
Technical properties
|
Standard
|
Unit
|
Result
|
|
Compressive strength
|
EN 1926
|
Mpa
|
297
|
|
Flexural strength
|
EN 12372
|
Mpa
|
24,5
|
|
Abrasion resistance
|
DIN 52108
|
cm³/50cm²
|
|
|
Abrasion resistance
|
EN 14157
|
mm³
|
|
|
Water absorption
|
EN 13755
|
mass %
|
0,1
|
|
Apparent density
|
EN 1936
|
kg/ m³
|
2660
|
|
Hardness
|
Vickers/Mohs |
788/6,1
|
|
|
Elasticity (Young´s modulus)
|
Gpa
|
52
|
|
|
Petrographic composition
|
EN 12407*
|
Value: |
|
|
Potassium feldspar
|
38 %
|
||
|
Plagioclase
|
20 %
|
||
|
Quartz
|
31 %
|
||
|
Biotite
|
3 %
|
||
|
Mica
|
9 %
|
||
|
Amphibole and Pyroxene
|
2 %
|
* Only mineral composition, main mineral and possibly shell and skeleton so-called fossil (Only main components)
1) Based on thickness measurement
2) Based on weight measurement
1) Based on thickness measurement
2) Based on weight measurement
