Method and apparatus for producing a multilayer cementitious product

Gypsum plasterboard is produced by combining calcium sulphate hemihydrate (stucco) with water to form an aqueous slurry. Uncalcined gypsum having a specific surface area below 0.3 m2/g is added to the slurry and the slurry is discharged onto a support so as to form a sheet of gypsum plasterboard.

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Bibliographic Details
Main Authors IRONSIDE KANE IAN, SPIKERMANN WINFRIED JOHANNES JOSEF
Format Patent
LanguageEnglish
Published 03.03.2015
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
ARTIFICIAL STONE
BUILDING
CEILINGS
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
FIXED CONSTRUCTIONS
FLOORS
GENERAL BUILDING CONSTRUCTIONS
INSULATION OR OTHER PROTECTION OF BUILDINGS
LIME, MAGNESIA
METALLURGY
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PERFORMING OPERATIONS
PHYSICS
REFRACTORIES
ROOFS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
SLAG
SOUND-PRODUCING DEVICES
TRANSPORTING
TREATMENT OF NATURAL STONE
WALLS, e.g. PARTITIONS
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:Gypsum plasterboard is produced by combining calcium sulphate hemihydrate (stucco) with water to form an aqueous slurry. Uncalcined gypsum having a specific surface area below 0.3 m2/g is added to the slurry and the slurry is discharged onto a support so as to form a sheet of gypsum plasterboard.
Bibliography:Application Number: US20040561708