WET CONCRETE CONDITIONING

• Main Authors: JARRY, Luc, BANDYO, Shashwat
• Format: Patent
• Language: English; French
• Published: 19.08.2021
• Subjects: ARTIFICIAL STONE; BLASTING; CEMENTS; CERAMICS; CHEMISTRY; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; LIGHTING; LIME, MAGNESIA; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; METALLURGY; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER; REFRACTORIES; REFRIGERATION OR COOLING; REFRIGERATORS; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WEAPONS; WORKING CEMENT, CLAY, OR STONE

Method and equipment for conditioning wet concrete (703), the wet concrete (703) being agitated in a revolving-drum concrete mixer (702), thereby bringing changing portions of the wet concrete (703) to a free surface (706) of the wet concrete (703) inside the mixer (702), the agitated wet concrete (703) being cooled and partially carbonated in that liquid and/or solid carbon dioxide is supplied to the concrete mixer (702) simultaneously with liquid nitrogen so that both the supplied nitrogen and the supplied carbon dioxide contact the free surface (706) of the wet concrete (703). Un procédé et un équipement de conditionnement de béton fluide (703), le béton fluide (703) étant agité dans un mélangeur à béton à tambour rotatif (702), ce qui permet d'amener des parties changeantes du béton fluide (703) vers une surface libre (706) du béton fluide (703) à l'intérieur du mélangeur (702), le béton fluide agité (703) étant refroidi et partiellement carbonaté de sorte que du dioxyde de carbone liquide et/ou solide soit fourni au mélangeur à béton (702) simultanément avec de l'azote liquide de sorte que l'azote fourni et le dioxyde de carbone fourni entrent en contact avec la surface libre (706) du béton fluide (703).