Test According to ASTM Standards Results [1] Abrasion resistance Hardness [ ASTM C241 / C1353 ] 42.7 Ha [2] Flexural Strength Mpa [ AST M C 880 ] 1600 Psi [3] Modulus Of Rupture Mpa. [ AST M C 99 ] 2100 Psi [4] Compressive Strength Mpa. [ AST M C170 ] 15800 Psi [5] Absorbation by Weight [ AST M C97 ] 0.03% [6] Density (Kg / M3) [ AST M C97 ] 2732