METHOD FOR PRODUCING LIGHT MOULDING MEMBERS OF FIRE-RESISTANT MATERAL

The invention relates to a process for producing refractory or fire-resistant light-weight mouldings with the use of a mixture of refractory or fire-resistant materials having a maximum grain size of 0.5 mm, especially 0.1 mm, plaster and, if appropriate, organic and/or inorganic fibres by preparing...

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Bibliographic Details
Main Author ULLRICH HINTZEN
Format Patent
LanguageEnglish
Published 10.06.1986
Edition4
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:The invention relates to a process for producing refractory or fire-resistant light-weight mouldings with the use of a mixture of refractory or fire-resistant materials having a maximum grain size of 0.5 mm, especially 0.1 mm, plaster and, if appropriate, organic and/or inorganic fibres by preparing a mixture of these constituents with water and addition of a separately prepared foam, production of the mouldings by conventional moulding procedures, mould release, drying and firing of the light-weight mouldings, and to refractory or fire-resistant light-weight mouldings produced by the process. The process according to the invention is characterised in that a foam is used, in the production of which the foaming agent used is a) a mixture of an ammonium alkyl ether-sulphate with an aromatic sodium sulphonate or b) a sodium alkyl polyglycol ether-sulphate or c) a mixture of a sodium alkyl polyglycol ether-sulphate, an aromatic sodium sulphonate and a fatty acid diethanolamide. The light-weight mouldings produced by the process according to the invention are distinguished by a particularly fine porosity and good mechanical properties.
Bibliography:Application Number: CN19851008487