A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROCÉDÉ DE TRAITEMENT DE SOLS POLLUES EN UTILISANT UN NOUVEAU LIANT HYDRAULIQUE A BASE DE CLINKER SULFO-ALUMINEUX
A hydraulic binder based on a sulfoaluminate clinker including the mineralogical phases ye'elimite C4A3$, mayenite C12A7, free lime CaO, and optionally belite C2S, characterized in that, in the clinker, the mineralogical phases are 20% to 50% by weight of ye'elimite C4A3$ phase, 5% to 80% by weight of mayenite C12A7 phase, and 1% to 5% by weight of free lime CaO, the weight ratio between the mayenite C12A7 and ye'elimite C4A3$ 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.
PROCÉDÉ DE TRAITEMENT DE SOLS POLLUES EN UTILISANT UN NOUVEAU LIANT HYDRAULIQUE A BASE DE CLINKER SULFO-ALUMINEUX
A hydraulic binder based on a sulfoaluminate clinker including the mineralogical phases ye'elimite C4A3$, mayenite C12A7, free lime CaO, and optionally belite C2S, characterized in that, in the clinker, the mineralogical phases are 20% to 50% by weight of ye'elimite C4A3$ phase, 5% to 80% by weight of mayenite C12A7 phase, and 1% to 5% by weight of free lime CaO, the weight ratio between the mayenite C12A7 and ye'elimite C4A3$ 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.
PROCÉDÉ DE TRAITEMENT DE SOLS POLLUES EN UTILISANT UN NOUVEAU LIANT HYDRAULIQUE A BASE DE CLINKER SULFO-ALUMINEUX
PROCESS FOR TREATING POLLUTED SOILS UPON USING A NOVEL SULFOALUMINATE CLINKER BASED HYDRAULIC BINDER
VERFAHREN ZUR BEHANDLUNG VERUNREINIGTER BÖDEN UNTER VERWENDUNG EINES NEUARTIGEN, AUF SULFOALUMINAT BASIERENDEN HYDRAULISCHEN BINDEMITTELS
MOUDILOU EMMANUEL (author) / GUERANDEL CYRIL (author) / LE ROLLAND BRUNO (author) / DELAIR STÉPHANIE (author)
2019-04-17
Patent
Electronic Resource
French
IPC:
C04B
Kalk
,
LIME
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