Fireproof clay concrete - contng soda water-glass sodium fluorosilicate and/or portland cement and fire clay

摘要

Fireproof clay concrete for refractory use, stable to CO and CH4-rich gases and acids, is produced by mixing 12-16 weight % soda water glass, 0.8-2.5 weight % Na fluorosilicate, 38-52 weight % fire-proff clay of 0.1 mm grain-size and 31-49 weight % fire-proof clay of 0.1-40 mm grain-size, and further processing by known concrete technology. - Pref. Na fluorosilicate can be replaced partly or completely by Portland cement. If Portland cement is used exclusively, the amount added is 0.3-0.9 weight %.