Silber Grun Gneiss

Apparent density: 2650 Kg/mc
Open porosity (by volume): 0,8%
Water absorption (by mass): 0,3%
Flexural strength in natural conditions: 20,4 MPa
Flexural strength after frost test: 19,9 MPa
Compression strength in natural conditions: 170 MPa
Compression strength after frost test: 168 MPa
Abrasion resistance - groove length: 15,5 mm
Slip resistance value - sand blasted (dry): 69 (SRV)
Slip resistance value - sand blasted (wet): 66 (SRV-USRV)
Breaking load at dowel-hole: 2620 N
Breaking load at dowel-hole, maximum fracture distance: 48 mm
Petrographic definition: quartzitic paragneiss
(POLITECNICO DI TORINO)
The request includes: 1. surface finished, size 2. quantity required
