METHOD AND APPARATUS FOR PRODUCING A MULTILAYER CEMENTITIOUS PRODUCT

Gypsum plasterboard is produced by combining calium sulphate hemihydrate (stucco) with water to form an aqueous slurry. Uncalcined gypsum having a specific surface area below 0.3 m /g is added to the slurry and the slurry is discharged onto a support so as to form a sheet of gypsum plasterboard. Sel...

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Bibliographic Details
Main Authors SPICKERMANN, WINFRIED, JOHANNES, JOSEF, IRONSIDE, KANE, IAN
Format Patent
LanguageEnglish
French
Published 06.01.2005
Edition7
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:Gypsum plasterboard is produced by combining calium sulphate hemihydrate (stucco) with water to form an aqueous slurry. Uncalcined gypsum having a specific surface area below 0.3 m /g is added to the slurry and the slurry is discharged onto a support so as to form a sheet of gypsum plasterboard. Selon l'invention, une plaque de plâtre est produite par mélange de sulfate de calcium hémihydraté (stuc) avec de l'eau pour former une suspension aqueuse. Du gypse non calciné présentant une surface spécifique inférieure à 0,3 m /g est ajouté à la suspension, puis cette dernière est versée sur un support de façon à former une feuille de plaque de plâtre.
Bibliography:Application Number: WO2004GB02681