Phase Composition and Physico-Mechanical Properties at Different Firing Temperatures of Ceramic Earthquake-Resistant Bricks with the Use of Ferro-Dust

Ceramic bricks based on low-melting clay and ferro-dust from self-disintegrating, low-carbon, ferrochrome slags, graded M100 to M175, respectively, were obtained in the temperature range 950 – 1100°C. The highest grades are fired at temperatures 1050 1100°C, M150 which can be used as earthquake-resistant. Studies have shown that hematite, wollastonite, diopside a liquid phase appear brick firing 950°C. Raising 1000°C contributes appearance of anorthite cristobalite. 1050°C does not bring about any special changes, except for an increase content cristobalite decrease feldspar. Subsequent raising 1100°C results higher anorthite, physicomechanical indicators due formation samples.