ACID-BASED BINDER COMPRISING PHOSPHATE-BASED CEMENTS

The invention describes a phosphate-based inorganic binder obtained by reaction between at least one basic constituent and an acidic phosphate salt, in the presence of a retarder which is an X+A- salt, the solubility of which in an aqueous medium, measured at 25°C, is greater than that of the acidic...

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Bibliographische Detailangaben
Hauptverfasser:	LEIVA MUNOZ, RAUL, YAMMINE, JOUMANA, TOUTOU-MELINGE, ZAHIA, NUNEZ SANZ, JOEL
Format:	Patent
Sprache:	eng ; fre
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 describes a phosphate-based inorganic binder obtained by reaction between at least one basic constituent and an acidic phosphate salt, in the presence of a retarder which is an X+A- salt, the solubility of which in an aqueous medium, measured at 25°C, is greater than that of the acidic phosphate salt, and in which X+ is a cation chosen from alkali metals, alkaline earth metals, zinc, aluminium and the ammonium ion, and A- is an acetate, formate, benzoate, tartrate, oleate, oxalate, bromide or iodide anion. L'invention décrit un liant minéral à base de phosphate obtenu par réaction entre au moins un constituant basique et un sel de phosphate acide, en présence d'un agent retardateur qui est un sel X+A- dont la solubilité en milieu aqueux mesurée à 25°C est supérieure à celle du sel de phosphate acide, et dans lequel X+ est un cation choisi parmi les métaux alcalins, les métaux alcalinoterreux, le zinc, l'aluminium et l'ion ammonium, et A- est un anion acétate, formiate, benzoate, tartrate, oléate, oxalate, bromure ou iodure.