SULFOALUMINOUS CLINQUER WITH HIGH CONTENT IN BELITA, MANUFACTURING PROCEDURE OF SUCH CLINQUER AND ITS USE FOR THE PREPARATION OF HYDRAULIC BINDERS.

摘要

Sulfoaluminous clinker characterized in that it comprises as a phasic composition, with respect to the total weight of the clinker: - from 5 to 25%, preferably from 10 to 20%, of calcium aluminoferrite phase of a composition corresponding to the general formula C2AXF (1-X), in which X comprises between 0.2 and 0.8. - from 15 to 35%, preferably from 20 to 30%, of calcium sulfoaluminate phase of "yee '' limit" (C4A3 $), - from 40 to 75%, preferably from 45 to 65% of belite (C2S), - 0.01 to 10% of one or more minor phases chosen from calcium sulfates, alkaline sulfates, perovskite, calcium aluminates, gehlenite, free lime and periclase, and / or a vitreous phase - and because it contains one or more elements Seconds chosen from sulfur, magnesium, sodium, potassium, boron, phosphorus, zinc, manganese, titanium, fluorine, chlorine, present in the following quantities: - 3 to 10% sulfur, expressed in sulfuric anhydride, - up to 5% magnesium, expressed in magnesium oxide, - up to 5% sodium, expressed in sodium oxide, - up to 5% potassium, expressed in potassium oxide, - up to 3% boron, expressed in boron oxide , - up to 7% phosphorus, expressed in phosphoric anhydride, - up to 5% zinc, manganese, titanium or their mixture, expressed in oxides of these elements ntos, - up to 3% of fluoride, chloride or its mixture, expressed in calcium fluoride and calcium chloride, the amount of secondary elements, expressed as indicated above, being less than or equal to 15% by weight with respect to the total weight of clinker