Kuru Grey
|
Technical properties
|
Standard
|
Unit
|
Result
|
|
Compressive strength
|
EN 1926
|
Mpa
|
297
|
|
Flexural strength
|
EN 12372
|
Mpa
|
24,5
|
|
Abrasion resistance, Böhme
|
DIN 52108
|
cm³/50cm²
|
|
|
Abrasion resistance, Böhme
|
EN 14157
|
mm³
|
|
|
Water absorption
|
EN 13755
|
vikt %
|
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*
|
|
|
|
Potassium feldspar
|
%
|
38
|
|
|
Plagioclase
|
%
|
20
|
|
|
Quartz
|
%
|
31
|
|
|
Biotite
|
%
|
3
|
|
|
Mica
|
%
|
9
|
|
|
Aamphibole 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
