METHOD OF PRODUCTION OF SULFATE-SILICATE ADDITIVE FOR CEMENT Russian patent published in 2004 - IPC

Abstract RU 2233252 C2

FIELD: manufacture of building materials; manufacture of fast-setting high-strength cement; concrete and reinforced concrete articles.

SUBSTANCE: proposed method includes burning of mixture containing alumino-silicate material and sulfating modifying agent; zeolite-containing stock of the following composition is taken as alumino-silicate material, mass-%: SiO₂, 58.66-70.87; Al₂O₃, 9.98-12.34; Fe₂O₃, 4.37-6.24; CaO, 10.64-14.51; MgO, 1.84-2.14; K₂O, 2.48-3.05; TiO₂, 0.48-1.65; Na₂O, 0.2-0.85; P₂O₅, 0.14-0.56; used as modifying agent is waste pickling solution of lighting industry at the following composition of mixture, mass-%: zeolite-containing stock, 30.00-40.00; waste pickling solution, 60.00-70.00; then, mixture is subjected to burning at temperature of 480-500 C continued for 20-50 minutes.

EFFECT: enhanced strength of concrete compositions; low cost of materials.

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RU 2 233 252 C2

Authors

Seljaev V.P.

Tereshkin I.P.

Korotin A.I.

Neverov V.A.

Bormusov Ju.A.

Agushev V.L.

Dates

2004-07-27—Published

2002-06-04—Filed