Ultra fast concrete especially in aeronautics

摘要

The invention relates to a hydraulic binder for concrete characterized in that it comprises - more than about 50% and less than about 80% by weight of Portland cement CEM I or CEM II, and- more than about 20% and less than about 50% by weight of sulfoaluminous cement (CSA), and in that the binder has a Blaine value of between 4000 and 8000, more particularly between 5000 and 7000. The invention relates to further on a corresponding formulation, concrete, process and use. Abstract figure: Fig. 1