BINDING Russian patent published in 2009 - IPC C04B7/147 

FIELD: building.

SUBSTANCE: invention refers to building materials, particularly to compositions of non-clinker binding on base of blast furnace slag and it can be implemented at production of concrete and reinforced concrete items, building mortars, and dry building mixtures. Here is disclosed binding produced by means of grinding the mixture containing wt %: blast furnace slag 50-60; bi-water plaster stone 5-9, mountain sand of composition, wt %: SiO₂ 34.1-39.9; Al₂O₃ 9.8-11.0; FeO+Fe₂O₃ 12.8-26.1; CaO 11.3-13.7; MgO 4.2-5.7; MnO 0.3-0.55; SO₃ 1.7-3.2; Na₂O+K₂O 1.3-3.2; l.a.b. (losses after baking) 8.5-15, containing 10-20 % of garnet minerals, 8-10, slag of ferroboron melt - the rest; also grinding of mixture is performed to specific surface 450 m²/kg.

EFFECT: maximal utilisation of hydraulic activity of slag due to optimisation of substance composition.

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