ELEMENT EN BETON A SURFACE SUPERHYDROPHOBE

• Main Authors: HORGNIES MATTHIEU, DYKMAN MELANIE, CHEN JEFFREY
• Format: Patent
• Language: French
• Published: 05.08.2011
• Subjects: ARTIFICIAL STONE; BUILDING; CEILINGS; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; ROOFS; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WALLS, e.g. PARTITIONS; WORKING CEMENT, CLAY, OR STONE

L'invention vise un élément en béton comportant une paroi superhydrophobe ayant une rugosité Ra comprise de 1 µm à 10 µm et ayant des protubérances espacées deux à deux d'un intervalle moyen compris de 1 µm à 40 µm. Ledit élément en béton a un diamètre de pores critiques de surface inférieur à 100 nm et comprend des portions affleurant ladite paroi plus hydrophobes que le béton. The invention relates to a concrete element comprising a superhydrophobic wall having a roughness Ra of between 1 µm and 10 µm and protuberances spaced out two by two at an average interval of between 1 µm and 150 µm. Said concrete element has a surface critical pore diameter of less than 100 nm and has parts flush with the wall, that are more hydrophobic than the concrete.