... features of thermal insulation bricksExcellent thermal insulation, energy saving, high compressive strengthlow thermal conductivity, low shrinkage, excellent resistance to wind erosion ... .0850.0080-0.10Density Kg/m3230-700230-700230-700230-700Compressive strength(MP)≥0.4≥0.5≥0.6≥0.6Al2O3%38 ...