AQUEOUS CEMENT COMPOSITION

A fresh aqueous cement composition suitable for building purposes is described. It contains, besides a hydraulic cement, a methyl ethyl cellulose ether having a DS methyl of 0.4-2.2, a DS ethyl of 0.05-0.8 and a MS hydroxy- (C2-C3)- alkyl of 0-2. The cellulose ether imparts excellent rheology proper...

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Bibliographic Details
Main Author HANS RYDGREN
Format Patent
LanguageEnglish
Spanish
Published 11.08.2004
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:A fresh aqueous cement composition suitable for building purposes is described. It contains, besides a hydraulic cement, a methyl ethyl cellulose ether having a DS methyl of 0.4-2.2, a DS ethyl of 0.05-0.8 and a MS hydroxy- (C2-C3)- alkyl of 0-2. The cellulose ether imparts excellent rheology properties, including a high water-retention combined with a long open time, to the cement composition. A dry blend and a rheology additive containing the cellulose ether are also described. La invencion describe una composicion de cemento acuoso en fresco adecuada para propositos de construccion. Contiene, ademas de un cemento hidraulico, un eter de metiletilcelulosa que tiene un DS metilo de 0.4-2.2, UN DS etilo de 0.05-0.8 y un MS hidroxialquilo de C2-C3 de 0-2. El eter de celulosa imparte a la composicion de cemento excelentes propiedades de reologia, incluyendo una alta retencion de agua combinada con un tiempo abierto largo. Se describen tambien una mezcla seca y un aditivo de reologia que contienen el eter de celulosa.
Bibliography:Application Number: MX2004PA05142