Test According to ASTM Standards Results [1] Abrasion resistance Hardness [ ASTM C241 / C1353 ] 45.5 Ha [2] Flexural Strength Mpa [ AST M C 880 ] 2400 Psi [3] Modulus Of Rupture Mpa. [ AST M C 99 ] 2300 Psi [4] Compressive Strength Mpa. [ AST M C170 ] 21500 Psi [5] Absorbation by Weight [ AST M C97 ] 0.09% [6] Density (Kg / M3) [ AST M C97 ] 2634