RAW MIXTURE FOR MANUFACTURE OF POROUS CONSTRUCTION MATERIAL Russian patent published in 2003 - IPC

FIELD: construction material industry. SUBSTANCE: raw mixture comprises liquid glass, granulated slag, blowing agent, water, and additionally comprises chamotte sand, argillaceous low-melting point raw material, ferrochromium slag and Na₂CO₃•1,5H₂O₂ as blowing agent. Components are used in the following ratio, wt%: chamotte sand 32.3-43.7; ferrochromium slag 12.5- 16.2; granulated slag 12.5-16.2; liquid glass 23.3-24.3; argillaceous low-melting point raw material 2.8-4.8; Na₂CO₃•1,5H₂O₂ 0.5-1.5; water the balance. Said mixture may be used for manufacture of heat-insulating and fire-resistant materials. EFFECT: improved quality of materials manufactured from such mixture. 1 tbl