Item Details
Quarry Location:
Minas Gerais
Water Absorption:
0.49 %
Density:
2722 kg/m3
Flexural Strength:
20.6 - 31.3 MPa
Recommended Usage:
Building stone, roof tiles, fireplaces, stairs, countertops, sinks, monuments, pool coping, sills, ornamental stones
Finishing Surface:
Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled, Thermalled, Natural Cleft, Weatheredge
Additional Names:
Ardosia Multicolor,Brazilian Rust Slate,Autumn Slate
Description:
Autumn Slate
Natural Cleft/Calibrated
Recommend application: Interior/Exterior
CHEMICAL ANALYSIS
Calcinations loess………. 2,6 %
Silicon..………….. 63,4 %
Iron Oxide………. 7,3 %
Aluminium Oxide…. 18,6 %
Calcium Oxide………. 0,7 %
Magnesium Oxide……… 2,5 %
Potasium Oxide………. 2,9 %
Sodium Oxide………… 1,8 %
Sulphates expessed as SO3…….Inf. 0,6 %
TECHNICAL ANALYSIS
Visible volumetric mass……….. 2722 KG/M3
Absorption coefficient………. 0,490%
Breaking load through indirect stress by bending…… 31,3 MPa
Breaking load through indirect stress by bending after cooling….. 20,6 MPa
Wear by attrition: abrasion coefficient in tribometer….. 7,54 MM
OBS.: 1 MPa = 10,2 Kg.f / Cm.2