Production of low-flammability heat-insulating layer

Low-flammability heat-insulating layers are produced in cavities of masonry or hollow building blocks by introducing foam particles of expanded plastic, preferably expanded polystyrene, and inorganic binder into the cavities. A preferred inorganic binder is an alkali metal silicate in the form of an...

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Bibliographische Detailangaben
Hauptverfasser:	DIETER KOENIG, FRIEDER HOHWILLER, FRITZ KRUECKAU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GENERAL PROCESSES OF COMPOUNDING LIME, MAGNESIA METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS REFRACTORIES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SLAG THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF NATURAL STONE WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Low-flammability heat-insulating layers are produced in cavities of masonry or hollow building blocks by introducing foam particles of expanded plastic, preferably expanded polystyrene, and inorganic binder into the cavities. A preferred inorganic binder is an alkali metal silicate in the form of an aqueous solution or suspension. In a preferred embodiment the binder is an aqueous sodium silicate solution having a solids content of 25 to 55% by weight and containing the following additives: a) 2 to 10% by weight of precipitated silica, b1) 5 to 50% by weight of sodium silicate powder or b2) 1 to 30% by weight of slaked lime, and c) 0.05 to 0.5% by weight of a surfactant.