SULFATE-SLAG BINDING AGENT Russian patent published in 2008 - IPC C04B7/14 

FIELD: chemistry.

SUBSTANCE: sulfate-slag binding agent contains, wt %: bi-water gypsum - 5-10 and rafining slag of electric steel-smelting production - the remaining part. Chemichal composition of slag, wt %: SiO₂ 14-34, AL₂O₃ 1.5-14, CaO 37-64, MgO 3-14, TiO₂ 0.05-0.5, MnO 0.14-2.6, FeO - less than 0.5. Used components of sulfate-slag binding agent are applied with particle size less than 1 mm - 97.0-98.0 wt %, 1 mm - 1.20-1.80 wt %, 1.25 mm - 0.7-1.2 wt %, 2 mm - 0.40-0.80 wt %.

EFFECT: utilisation of production waste products, obtaining binding agent of normal hardening, which possesses higher corrosion resistance.

2 cl, 2 tbl, 1 ex