ProductTechnicalDatasheet(typical)FusionTechnology ProductName QAC-55 QAC-61 ChemicalComposition(%) SiO2 4.5 4.0 Al2O3 55.0 61.0 Fe2O3 0.9 0.8 CaO 36.0 31.0 MgO 0.3 0.2 Fineness Residueon88µsieve,% 0.5 0.5 Blaine,CM2/g 4200 5500 SettingTime Initial 5hours 6hours Final 6hours 7hours ColdModulusofRupture,MPa (Curedat20°C) 6hrs 4.5 4.5 12hrs 6.0 6.5 24hrs 7.0 7.5 ColdCrushingStrength,MPa (Curedat20°C) 6hrs 40.0 40.0 12hrs 60.0 65.0 24hrs 70.0 75. Application RefractoryandConstruction Refractory