Method for the reduction of the degree of shrinkage of hydraulic binders

On object of the present invention is an agent for the reduction of the degree of shrinkage in hydraulic binders, whereby said comprises an alkanolamine of formula R-NH-(AOH) wherein R is hydrogen or a linear or branched aliphatic or cyclic C 1 -C 6 -alkyl group, and A is a C 2 H 4 -group or C 3 H 6...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Wombacher, Franz, Burge, Theodor, Mader, Urs
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:On object of the present invention is an agent for the reduction of the degree of shrinkage in hydraulic binders, whereby said comprises an alkanolamine of formula R-NH-(AOH) wherein R is hydrogen or a linear or branched aliphatic or cyclic C 1 -C 6 -alkyl group, and A is a C 2 H 4 -group or C 3 H 6 -group, alone or in combination with hydroxy compounds and/or ethers. Furthermore a method for the reduction of the dry shrinkage of binders such as cement, admixed cement, puzzolanas and thereof produced mortars and concretes by means of such a shrinkage reducing agent is described.