Brown - Gneiss
Bulgaria
Item Details
Quarry Location:
Orpheus Mountain (Rhodope Mountains),Ivaylovgrad
Water Absorption:
0.49 %
Density:
2660 kg/m3
Recommended Usage:
Building stone,countertops, sinks, monuments, pool coping, sills, ornamental stone, interior, exterior, wall, floor , paving
Finishing Surface:
Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled, Thermalled, Natural Cleft, Weatheredge
Additional Names:
Ivaylovgrad Golden Brown Gneiss,Ivailovgrad Brown Gneiss,Gneiss Zlatisto Kafiav,Ivailovgrad Golden Brown Gneiss,Golden Brown Gneiss
Description:
Qualities: hot and cold resistant, extremely durable to atmospheric influences, nonslip rugged surface
Application: Suitable for outdoor floorings and revetments
Color: Golden-brown
PHYSIC AND CHEMICAL PROPERTIES OF GNEISS STONE FROM IVAYLOVGRAD
Volume density ρ g/cm3 2.58
Specific density ρs g/cm3 2.66
Pore volume n % 3.01
Pore coefficient е - 0.031
Compressive strength in air dry state R H C x105 Pa 378.40
Water absorption % 0.49
Compressive strength in absorbed water state R H В x105 Pa 344.9
“Deval” wear % 5.5
Compressive strength after 25-fold freeze state R H 3 x105 Pa 325.9
Cold resistance coefficient - 0.86
Loss of mass after 25-fold freeze % 0.12