CHEMICAL ANALYSIS
Calcinations loss………. 2,9 %
Silex………… .64,5 %
Iron Oxide………. 6,8 %
Aluminium Oxide……… 17,2 %
Calcium Oxide………. 0,7 %
Magnesium Oxide……… 2,1 %
Potasium Oxide……. 3,6 %
Sodium Oxide……… 1,9 %
Sulphates expessed as SO3……. 0,1 %
TECHNICAL ANALYSIS
Visible volumetric mass………. 2720 KG/M³
Absorption coefficient…… 0,616%
Breaking load through indirect stress by bending…… 24,3 MPa
Breaking load through indirect stress by bending after cooling… . 20,0 MPa
Wear by attrition: abrasion coefficient in tribometer……. 7,57 MM
OBS.: 1 MPa = 10,2 Kg.f / Cm.²