Process for lightening plasterboards

Process for lightening plasterboards

A method for producing plasterboards having a core density below 0.77 is disclosed, which comprises the following steps: forming a foam from water and a surface active agent consisting of at least one alkyl sulfate having formula H(CH2)nOSO3 -M+, wherein n is a number between 6 and 16, M is a monova...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: GARCIN, ROBERT, MARTIN, DANIEL
Format: Patent
Sprache:eng
Schlagworte:
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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Beschreibung
Zusammenfassung:A method for producing plasterboards having a core density below 0.77 is disclosed, which comprises the following steps: forming a foam from water and a surface active agent consisting of at least one alkyl sulfate having formula H(CH2)nOSO3 -M+, wherein n is a number between 6 and 16, M is a monovalent cation and the average number of carbon atoms nm is between 9 and 10; and introducing the foam obtained into a plasterboard, wherein the quantity of surface active agent introduced does not exceed 0.32g/l of plasterboard. This method is suitable for producing reduced-weight plasterboards.