Belite sulfoaluminate binder
AssigneeLafarge
InventorsEllis Gartner, Vincent Morin
Life of this patent
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Abstract
A hydraulic binder includes a belite sulfoaluminate clinker and silica having a BET specific surface area in nitrogen of at least 50 m2/g, the quantity of silica being lower than or equal to 5%, the percentage being expressed as a mass percentage in relation to the mass of the binder.
Claims9
A hydraulic binder comprising a belitic sulfoaluminous clinker and silica having a BET specific surface area under nitrogen of at least 50 m2/g, the amount of silica being less than 5%, a percentage expressed by mass based on the binder mass.
A method for improving compressional strength beyond 1 day after mixing of a hydraulic binder comprising a belitic sulfoaluminous clinker, the method comprising mixing less than 5% of silica, a mass percentage based on the binder mass, with a belitic sulfoaluminous clinker, the silica having a BET specific surface area under nitrogen of at least 50 m2/g.
Dependencies are inferred from the claim text.