Abstract: The invention relates to an extremely fireproof inorganic foam body, to a method for producing said body and to the use of the foam body.

Abstract: The prefabricated structural components strengthened by tensile reinforcements, preferably metal inlays, containing binders and aggregates, wherein said binder is an alkali water glass, and the aggregates have a broad grain size distribution like aggregates added to reinforced concrete.

Abstract: This invention is directed to a composite material of one or more preformed reinforcement materials co-influencing the final shape and made of tension-resistant organic and/or inorganic material, a second material of alkali water glass and a finely disperse mineralic filler, with hardening having been effected by drying at 80.degree. to 120.degree. C., or by drying at 80.degree. to 120.degree. C. and subsequent tempering at 400.degree. to 700.degree. C. The process for producing said composite material and its use as a fire-proof, bending tension-resistant construction element formed as desired is disclosed.

Abstract: The inorganic foam body consists of an at least partially open-cell foam formed by thermally foaming and hardening a mixture comprising an alkali water glass and a filler from the group of aluminum oxide, silicon dioxide, aluminous cement, crushed rocks, graphite or mixtures thereof. It is produced by heating a mixture comprising an alkali water glass and a filler from the group of aluminum oxide, silicon dioxide, aluminous cement, crushed rocks, graphite with a blowing agent, and preferably azodicarbonamide, at temperatures of at least 180.degree. C., and preferably of from 200.degree. C. to 300.degree. C. The foam body has a bulk density within the range of from 50 to 500 kg/m.sup.3, and preferably of from 50 to 400 kg/m.sup.3.

Abstract: Shaped part based on rigid urea formaldehyde or melamine formaldehyde foam of at least partially open cell structure and having density of 5 to 150 kgs/cu.m. The cells of the foam material adjoining the periphery of at least one external surface of the shaped part are impregnated with a silicate, and the external surface is coated with a silicate lacquer which forms a continuous top coat. A reinforcing sheet material is bonded to the top coat. The shaped part is of improved fire proofness, and compressive, tensile, and flexural strength of the foam.