MINERAL FOAMED-FIBRE HEAT INSULATION MATERIAL Russian patent published in 2015 - IPC C04B28/26 C04B14/38 C04B40/02 C04B111/20 C04B111/27 

FIELD: construction.

SUBSTANCE: invention relates to construction materials and describes a foamed-fibre material (with density of 0.100-0.500 g/cm³), used for production of construction and furniture structures, walls, ceilings, partitions, heat and sound insulation, heat insulation of domestic and industrial furnaces, electric heating instruments, assemblies having high temperature, pipelines. The mineral foamed-fibre heat insulation material produced by laying of laminating material into a form by means of a film, foil, sheet, soaking it with a composition containing liquid sodium glass with a silicate module 2.0-3.6 and finely ground mineral filler - clay, chalk or table salt, laying of mineral fibre in the form of mat with thickness from 3 to 100 mm, soaking from the top with the specified composition, coating by the laminating material with subsequent heating of the closed form to temperature of 200-400°C for 20-60 minutes with swelling to increase the volume 5-8 times at the following ratio of components, wt %: liquid sodium glass with a silicate module 2.0-3.6 20-79.8, mineral fibre 20-79.8, finely ground mineral filler 0.1-10, laminating material forming the surface 0.1-10. The invention is developed in the invention claim.

EFFECT: increased strength, durability and moisture resistance of heat insulation material.

2 cl, 7 ex