Method for treating polluted soil by a hydraulic binder with mayenite phase
AssigneeHolcim Technology Ltd
InventorsNouffou Tapsoba, Eric Brouard, Cédric Comparet, Mohsen Ech, Nicolas Richard, Christophe Levy
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Abstract
A method for treating polluted soils, includes mixing the soil with a hydraulic binder, wherein the hydraulic binder includes: as the only high-alumina clinker, a high-alumina clinker including more than 80 wt % of mayenite C12A7 phase or a mayenite isotope, the high-alumina clinker making up at least 70 wt % of the weight of the hydraulic binder; and 1 wt % to 30 wt %, relative to the total weight of the binder, of lime.
Claims13
A method for treating polluted soils, comprising mixing said soil with a hydraulic binder, wherein the hydraulic binder comprises:
- as the sole aluminous clinker, an aluminous clinker comprising more than 80% by mass of mayenite C12A7 phase or a mayenite isotype, said aluminous clinker represents at least 70% by weight of the weight of the hydraulic binder;
- from 1 to 30% by weight, relative to the total weight of the binder, of lime.
A method to stabilize soils in situ or before storage, comprising mixing said soil with a hydraulic binder, wherein the hydraulic binder comprises:
- as the sole aluminous clinker, an aluminous clinker comprising more than 80% by mass of mayenite C12A7 phase or a mayenite isotype, said aluminous clinker represents at least 70% by weight of the weight of the hydraulic binder;
- from 1 to 30% by weight, relative to the total weight of the binder, of lime.
Dependencies are inferred from the claim text.