Patent ID: 8328931
Filing Date: 2012-12-11
Classification: C04B,Y02P,Y02W

Abstract:
1. Hydraulic binder comprising a ground blast furnace slag in an amount comprised between 30% and 95% by mass on the binder, Portland cement clinker in an amount equal to or greater than 5% by mass on the binder, and at least one sulphate as activator, characterized in that said slag has the following proprieties and composition by mass: grinding fineness greater than 4000 cm2/g Blaine; glass content greater than 80% SiO Al CaO: 34-42% with a (CaO+MgO)/Al and in that said sulphate is contained in a total amount, expressed as SO comprised between 0.6% and 4.5% by mass on the binder.