CLAY-PHOSPHATE MATERIAL Russian patent published in 2010 - IPC C04B28/34 C04B22/06 C04B103/20 

FIELD: construction.

SUBSTANCE: invention is related to the field of construction materials and may be used in reinforcement of soils, in industrial and civil construction. Clay-phosphate material, which contains loamy soil, iron-containing waste of metallurgical production with residue on sieve No. 008 5-7%, containing Fe(II) oxide, orthophosphoric acid with density of 1.25 g/cm³, additionally contains argillaceous materials - burnt clays with residue on sieve No. 008 5…7% with the following composition, wt %: Fe₂O₃ - 6.67; CaO - 2.12; SiO₂ - 65.04; CaO - 2.12; MgO - 1.83; Al₂O₃ - 18.38; including Al₂O₃ act. - 3.63; Na₂O - 1.32; TiO₂ - 0.82; K₂O - 3.11; SO₃ - 0.14, at the following ratio of components, wt %: loamy soil - 40 - 42, specified waste - 12 - 13, argillaceous rocks - burnt clays - 17 - 18, orthophosphoric acid with density of 1.25 g/cm³ - the rest.

EFFECT: slower setting of hardening materials based on phosphoric acid.

1 ex, 1 tbl