Use of a hydraulic binder containing calcium aluminate for the production of a construction material
AssigneeARDEX Group GmbH
InventorsStephen Alan Brooks, Rüdiger Oberste-Padtberg, Jörg Sieksmeier, Hubert Motzet, Michael Pomberg
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Abstract
The invention relates to the use of a hydraulic binder containing calcium aluminate, obtainable by a method in which a) prepared amorphous residual material rich in aluminium oxide and/or aluminium hydroxide is heated after the addition of a b) calcium ion-containing binder component and c) water, for the production of a constructing material.
Claims17
A method for producing a hydraulic binder containing calcium aluminate and not containing Portland cement, comprising heating a processed amorphous alumina-rich or alumina-hydroxide-rich residue after addition of a calcium ion-containing binder component and water wherein the processed amorphous alumina-rich or alumina-hydroxide-rich residue is formed in the form of a drinking water treatment residue, wherein the amount of the sum of alumina and alumina-hydroxide of the residue in relation to the dry content is >50 wt.-%.
Dependencies are inferred from the claim text.