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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Main Author | |
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Format | Patent |
Language | English |
Published |
02.05.2007
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: CN200480022989 |