USE OF CO2 AS WATER DEMAND REDUCER IN GYPSUM STUCCO REHYDRATION MORTARS

The present application concerns a method for the production of a gypsum article, which comprises introducing a measured quantity of carbon dioxide into the process water and mixing the stucco with the thus treated water. The C02-enriched water has the advantage of providing compositions with suffic...

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Bibliographic Details
Main Authors HALBACH, MARTIN, LO MORO, GIACOMO
Format Patent
LanguageEnglish
French
Published 28.05.2020
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 present application concerns a method for the production of a gypsum article, which comprises introducing a measured quantity of carbon dioxide into the process water and mixing the stucco with the thus treated water. The C02-enriched water has the advantage of providing compositions with sufficient processing properties at considerably lower water contents, thus allowing for significant energy savings. The invention also concerns slurries prepared according to this method as well as an apparatus which is adapted to implement this method. La présente invention concerne un procédé de fabrication d'un article en gypse, qui comprend l'introduction d'une quantité mesurée de dioxyde de carbone dans l'eau de traitement et le mélange du stuc avec l'eau ainsi traitée. L'eau enrichie en CO2 présente l'avantage de donner des compositions ayant des propriétés suffisantes de traitement pour des teneurs en eau considérablement plus faibles, ce qui permet de faire d'importantes économies d'énergie. L'invention concerne également des barbotines préparées par ce procédé, ainsi qu'un appareil conçu pour mettre en uvre ce procédé.
Bibliography:Application Number: CA20183111630