BINDER Russian patent published in 2011 - IPC C04B11/00 C04B18/04 C04B111/27 

FIELD: construction.

SUBSTANCE: binder that contains a gypsum plaster, an iron-containing waste of blast furnace production and a hydrophobisated additive, the specified iron-containing waste is blast furnace dust, and the hydrophobisated additive is waste of lanolin production, which is a mixture of natural wool wax from esters of fatty acids, soda ash and water, in amount of 40-45% of weight per dry residue, and at the following ratio of all components, wt %: gypsum plaster - β-CaSO₄·0.5H₂O 94.5-98.5, blast furnace dust 1-4, the specified waste of lanolin production 0.5-1.5.

EFFECT: increased water resistance and crack resistance of binder without strength reduction.

1 ex, 1 tbl