VERFAHREN ZUR GEWICHTSVERMINDERUNG VON GIPSBAUPLATTEN

Process for the manufacture of plasterboards exhibiting a core density of less than 0.77 comprising the stages of the formation of a foam from water and a surfactant composed of at least one alkyl sulphate of formula H(CH2)nOSO3-M+, in which n is a number between 6 and 16, M is a monovalent cation a...

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Hauptverfasser:	GARCIN, ROBERT, MARTIN, DANIEL
Format:	Patent
Sprache:	ger
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:	Process for the manufacture of plasterboards exhibiting a core density of less than 0.77 comprising the stages of the formation of a foam from water and a surfactant composed of at least one alkyl sulphate of formula H(CH2)nOSO3-M+, in which n is a number between 6 and 16, M is a monovalent cation and the mean number of carbon atoms nm is from 9 to 10, and the introduction of the foam obtained into a plaster slurry, characterized in that the amount of surfactant introduced does not exceed 0.32 g/l of plaster slurry. Application to the manufacture of lightened plasterboards.