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

FIELD: chemistry.

SUBSTANCE: invention pertains to construction materials. The clay-phosphate material which contains blue Cambrian clay, iron-bearing wastes from metallurgical production based on iron (II) oxide with 5-7% residual on sieve No.008 and orthophosphoric acid with density of 1.30 g/cm³, also contains wastes from water treatment, treatment of waste water - spent sulphonated carbon with 5-7% residual on sieve No.008, having the following composition, wt %: C - 45.24; Na₂SO₄ - 13.0; Fe₂O₃ - 0.44; Al₂O₃ -1.43; MgO - 0.15; CaO - 0.29; SiO₂ - 4.13; H₂O - 35.0; suspended substances - 0.32, with the following ratio of components, wt %: blue Cambrian clay 58-59, said iron-bearing wastes 12-13, said sulphated carbon 11-12, orthophosphoric acid with density of 1.30 g/cm³ - the rest.

EFFECT: higher frost-resistance of the material.

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