BUILDING MATERIAL Russian patent published in 2014 - IPC C04B28/30 

FIELD: construction.

SUBSTANCE: invention proposes a building material obtained by preparing a mixture of caustic magnesite and expanded vermiculite with bulk density of 90 to 250 kg/m³ by adding effective amount of water solution of magnesium chloride with density of 1120÷1290 kg/m³; amount of expanded vermiculite is 38.4÷217 kg on a one cubic metre basis; amount of caustic magnesite is 128÷217 kg on a one cubic metre basis, and volumetric ratio of caustic magnesite and expanded vermiculite is 1:3÷4:5.

EFFECT: enlarging the range of materials for load-carrying structures, reducing specific mass, increasing strength, thermal conductivity, acoustic insulation, a section of half absorption for gamma- and X-ray radiation.

7 cl, 2 tbl