The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2017
Filed:
May. 13, 2013
Ciments Francais;
Emmanuel Moudilou, Breuilpont, FR;
Cyril Guerandel, Paris, FR;
Bruno Le Rolland, Oinville sur Montcient, FR;
Stephanie Delair, Poissy, FR;
CIMENTS FRANCAIS, Puteaux, FR;
Abstract
A hydraulic binder based on a sulfoaluminate clinker including the mineralogical phases ye'elimite CA$, mayenite CA, free lime CaO, and optionally belite C2S, characterized in that, in the clinker, the mineralogical phases are 20% to 50% by weight of ye'elimite C4A3$ phase, 5% to 80% by weight of mayenite CAphase, and 1% to 5% by weight of free lime CaO, the weight ratio between the mayenite CAand ye'elimite CA$ phases being between 0.1 and 10. The binder can be used to treat polluted soils, in particular soils with a leachable fraction greater than 0.4% that contains predominantly anions and/or heavy metal cations by mixing the soil with the hydraulic binder, in soil/binder weight proportions of between 1 and 40 parts of binder for 100 parts of soil. It makes it possible to stabilize soils which are polluted or to stabilize soils before dumping.