USE OF A CONCRETE-BASED ELEMENT FOR TREATMENT OF GASES AND VOLATILE COMPOUNDS

The invention relates to the use of an element for the adsorption of at least one atmospheric volatile compound and/or an atmospheric gas from the group comprising atmospheric nitrogen oxides, sulphur oxides, carbon oxides, ozone and volatile organic compounds. The aforementioned element has a surfa...

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Bibliographische Detailangaben
Hauptverfasser:	DUBOIS-BRUGGER, ISABELLE, HORGNIES, MATTHIEU, DYKMAN, MELANIE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRACTORIES SEPARATION SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	The invention relates to the use of an element for the adsorption of at least one atmospheric volatile compound and/or an atmospheric gas from the group comprising atmospheric nitrogen oxides, sulphur oxides, carbon oxides, ozone and volatile organic compounds. The aforementioned element has a surface porosity strictly greater than 8% and comprises: a one-piece body made from concrete and having a volume greater than 1 L; and, in the concrete body and/or at the surface thereof, a compound having a BET specific exchange surface area greater than 100 m2/g, said element containing no photocatalytic agent. L'invention vise une utilisation d'un élément pour l'adsorption d'au moins un composé volatil de l'atmosphère et/ou un gaz de l'atmosphère parmi le groupe comprenant les oxydes d'azote, les oxydes de soufre, les oxydes de carbone, l'ozone et les composés organiques volatils de l'atmosphère, ledit élément ayant une porosité de surface strictement supérieure à 8 %, ledit élément comprenant un corps monobloc en béton dont le volume est supérieur à 1 L et, dans le corps en béton et/ou en surface du corps en béton, un composé ayant une surface spécifique d'échange BET supérieure à 100 m2/g, ledit élément ne comprenant pas d'agent photocatalytique.