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-Compressive strength kg/cm² 1830 -Ditto after gelivity kg/cm² 1640 -Ultimate tensil-min.fall height kg/cm² 118 -Coeff. thermal expansion mm./m.° C ------ -Coeff.water absorption % in weigth 0.23 -Impact test-min.fall height cm ---- -Bulk density kg/m³ ---- |