Water Absorption ASTM C 97 : 0.1 %Bulk Spesific Gravity : 2634 Modulus of Rupture ASTM C 99 : 2300 psiCompressive Strength ASTM C 170 : 21500 psiAbrasion Resistance ASTM C 241 : 45.5 HaFlexural Strength ASTM C 880 : 2400 psi