CLAY-PHOSPHATE MATERIAL Russian patent published in 2010 - IPC C04B28/34 C04B111/20 

FIELD: construction.

SUBSTANCE: invention is related to the field of construction materials. Clay-phosphate material, which contains clay, iron-containing waste of metallurgical production on the basis of Fe(II) oxide with residue on sieve No. 008 5-7% and orthophosphoric acid with density of 1.25 g/cm³, contains blue Cambrian clay and additionally crushed construction bricks with residue on sieve No. 008 5…7% with the following chemical composition, wt %: SiO₂ - 33.00; Al₂O₃ - 36.00; H₂O - 9.00; CaSiO₃ - 12.00; MgSiO₃ - 10.00 at the following ratio of components, wt %: blue Cambrian clay - 58 - 59, specified waste - 10 - 12, specified crushed construction bricks - 12- 13, orthophosphoric acid with density of 1.25 g/cm³ - the rest.

EFFECT: reduced heat conductivity coefficient of clay-phosphate material.

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