Foamed cement slurry

The present invention relates to a formulation of a foamed cement slurry comprising in combination: at least one hydraulic binder from the group consisting of class G Portland cements, class H Portland cements, aluminous cements whose alumina content is at least above 30% by mass, sulfoaluminous cem...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AUDIBERT ANNIE, RIVEREAU ALAIN, LECOLIER ERIC
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to a formulation of a foamed cement slurry comprising in combination: at least one hydraulic binder from the group consisting of class G Portland cements, class H Portland cements, aluminous cements whose alumina content is at least above 30% by mass, sulfoaluminous cements and plasters, water whose proportion ranges between 20% and 60% by mass in relation to the mass of hydraulic binder, a foaming agent whose proportion ranges between 1% and 20% by mass in relation to the mass of hydraulic binder, the foaming agent being a hydrosoluble polymer comprising hydrophobic links, or a mixture of such polymers.