SULFOALUMINOUS CLINKER HAVING A HIGH BELITE CONTENT, PROCESS FOR PRODUCING SUCH A CLINKER AND USE THEREOF FOR PREPARING HYDRAULIC BINDERS.

摘要

The invention relates to a belite-sulphoaluminous clinker, to its manufacturing process and its use for the preparation of hydraulic binders, and comprising as mineralogical composition: 5 to 25%, preferably 10 to 20%, of calcium aluminoferrite phase; a composition corresponding to the general formula C2AXF (1-X), with X between 0.2 and 0.8 - 15 to 35%, preferably 20 to 30%, of calcium sulfoaluminate phase "yee 'limit" (C4A3 $), - 40 to 75%, preferably 45 to 65% belite (C2S), - from 0.01 to 10% of one or more minor phases chosen from calcium sulphates, alkaline sulphates, perovskite, aluminates calcium, gehlenite, free lime and periclase, and / or a glassy phase, and at least one secondary element selected from sulfur, magnesium, sodium, potassium, boron, phosphorus, zinc, manganese, titanium, fluorine, chlorine, the total content of the said secondary elements ires being less than or equal to 15%.