A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROCEDE DE TRAITEMENT DE SOLS POLLUES PAR DES SULFATES
The present invention relates to a method for treating contaminated soil, comprising at least a step of treating the soil with, by weight relative to the weight of the dry soil: - between 1.5% and 5.0% of a first belite sulfoaluminate clinker-type mineral binder, - between 2.0% and 5.0% of lime, and characterised in that the soil is also treated with an additional component chosen from: - a second mineral binder that is different from the first mineral binder and preferably chosen from a calcium aluminate cement, a blast furnace slag or a combination thereof at a content ranging from 1.5% to 5.0% by weight relative to the weight of the dry soil, - an alkanolamine at a content ranging from 0.001 to 0.050% by weight relative to the weight of the dry soil, - a hexavalent chromium salt reducing agent at a content ranging from 0.01 to 3.00% by weight relative to the weight of the dry soil, and - combinations thereof, and in that the lime is added to the contaminated soil in proportions greater than 30% by weight relative to the total weight of the first mineral binder, lime and, where appropriate, the second mineral binder.
PROCEDE DE TRAITEMENT DE SOLS POLLUES PAR DES SULFATES
The present invention relates to a method for treating contaminated soil, comprising at least a step of treating the soil with, by weight relative to the weight of the dry soil: - between 1.5% and 5.0% of a first belite sulfoaluminate clinker-type mineral binder, - between 2.0% and 5.0% of lime, and characterised in that the soil is also treated with an additional component chosen from: - a second mineral binder that is different from the first mineral binder and preferably chosen from a calcium aluminate cement, a blast furnace slag or a combination thereof at a content ranging from 1.5% to 5.0% by weight relative to the weight of the dry soil, - an alkanolamine at a content ranging from 0.001 to 0.050% by weight relative to the weight of the dry soil, - a hexavalent chromium salt reducing agent at a content ranging from 0.01 to 3.00% by weight relative to the weight of the dry soil, and - combinations thereof, and in that the lime is added to the contaminated soil in proportions greater than 30% by weight relative to the total weight of the first mineral binder, lime and, where appropriate, the second mineral binder.
PROCEDE DE TRAITEMENT DE SOLS POLLUES PAR DES SULFATES
METHOD FOR TREATING SOIL CONTAMINATED BY SULPHATES
VERFAHREN ZUR BEHANDLUNG VON SULFATKONTAMINIERTEN BÖDEN
ALBERT BLANDINE (author) / BROYER VÉRONIQUE (author) / SERCLERAT IVAN (author) / MEYER VINCENT (author) / RUIZ MICKAËL (author)
2022-11-02
Patent
Electronic Resource
French
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Localisation des sols pollués et décontamination optimale
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