CRUDE MIXTURE FOR MAKING EXPANDED CLAY Russian patent published in 2018 - IPC C04B14/12 C04B18/04 C04B20/06 C04B33/132 C04B38/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the production of porous aggregates of argillous raw material for lightweight concrete. Raw material for the production of light expanded clay aggregate contains, mass. %: brick clay of 80–85, iron-containing waste from groundwater deironing stations, which are a gel-like sol containing, mass. %: Fe₂O₃ 65–82; SiO₂ 2–4; CaO 2–5; MgO 2–5; Al₂O₃ 1–3; LOI 9–20, 10 – 18, the waste of the total runoff of monomer production, which is a saponified aqueous solution of sodium salts, containing, mass. %: Na₂CO₃ 36–58; NaOH 2–5; NaCl 1–3; Na₂SO₄ 0.2–3; Na₂S 0.1–1; H₂O 32–55.7; organic impurities 5–12, 2 – 5.

EFFECT: increase strength and frost resistance of the resulting granules of light expanded clay aggregate.

1 cl, 2 tbl