MAGNESIUM-BASED COMPOSITE MATERIAL Russian patent published in 2011 - IPC C04B28/30 C04B111/27 

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of construction materials and can be used to make articles used in inner and outer lining of buildings, making wall blocks, panels, monolithic structures, as well as for filing cracks in buildings and other structures. The magnesium-based composite material which contains caustic magnesite, sealer - aqueous magnesium chloride solution with density 1.20-1.25 g·cm^-3, also contains a modifying additive - water-soluble fluoride MeF, where Me denotes NH₄ ⁺ Li⁺, Na⁺, K⁺, with the following ratio of components in wt %: caustic magnesite 22.0-31.0, said aqueous magnesium chloride solution 23.0-37.0, filler 31.1-54.9, said fluoride 0.10-0.90.

EFFECT: low water absorption, high water resistance and crack resistance while preserving strength properties.

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