USE OF A PLASTICIZER-CONTAINING HARDENING ACCELERATOR COMPOSITION

The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and a process for the preparation of a hardening accelerator composition by reaction of a calcium compound with a silicon...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Schmitt, Dirk, Nicoleau, Luc, Dorfner, Reinhard, Montero Pancera, Sabrina, Kutschera, Michael, Leitner, Hubert, Hesse, Christoph, Vierle, Mario, Zürn, Siegfried, Albrecht, Gerhard, Jetzlsperger, Eva, Fridrich, Daniel, Wohlhaupter, Thomas, Bräu, Michael, Lorenz, Klaus
Format:	Patent
Sprache:	hrv ; 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:	The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and a process for the preparation of a hardening accelerator composition by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction of the water-soluble calcium compound with the water-soluble silicate compound being carried out in the presence of an aqueous solution which contains a water-soluble comb polymer suitable as a plasticizer for hydraulic binders. The invention concerns also a composition of calcium silicate hydrate and comb polymer, its use as hardening accelerator and for the reduction of the permeability of hardened compositions.