PHYSICAL - MECHANICAL FEATURES

Commercial trade name: African Black Geological classification: Gabbro Mineralogical composition   Major constituent minerals: Plagioclase Pyroxene Quartz Microline Accessory minerals: Hornblende Biotite Magnetite

Physical Properties   Compressive strength, MPa (nominal value) Flexural strength, MPa (nominal value) Water absorption, % m/m 427,7 28,3 0,11 Density:   Bulk density, kg/m3 Relative density Abrasion resistance, wear, mm Coefficient of thermal expansion, per °C 3105 3,10 1,30 4,67 x 10-6