HEAT-INSULATED BUILDING MEMBER Russian patent published in 2006 - IPC E04B1/78 E04C2/36 B32B3/12 

FIELD: building members, particularly heat-insulated building unit used as filler structures, facings and building structures.

SUBSTANCE: heat-insulated building member comprises outer layers, metal foil screen layers, cellular packing layers made of bent paper strips and adhered one to another. Cells of one packing layer are displaced with respect to that of another packing layer. Outer layers are made of metal foil and are used as screens and load-bearing layers. Cellular packing layers are connected with each other by means of flat paper sheets. Planes of adjacent packing layer connection areas are turned one relative another through angle equal or less than 90°. Packing layer thickness, namely cell height, and cell dimensions are reduced towards outer layers. Flat paper sheet thickness increases towards outer layers. Packing layer cells adjoining outer load-bearing layer facing heat-dissipation surface are filled with foaming composition. The foaming composition includes components, which sublimate under the action of high temperature with water vapor or carbonic oxide gas emission. Adjacent packing layers adjoining opposite outer load-bearing layers are filled with ecologically-safe cotton wool. Ratio between flat paper sheets and packing layer thickness (cell height) is 1:1 - 1:250. Ratio between cell height and cell face dimensions is 1:2-1:5. Ratio between bent paper strip thickness used for cell production and packing layer thickness (cell height) is 1:50-1:300. Ratio between mean packing layer thickness (mean 9-th cell height) and heat-insulation layer thickness is 1:2-1:60.

EFFECT: increased load-bearing capacity, strength and fire-resistance along with retention of good heat-insulation properties.

5 cl, 2 dwg