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1. WO2020006636 - PROCESSES AND SYSTEMS FOR CARBON DIOXIDE SEQUESTRATION AND RELATED CONCRETE COMPOSITIONS

Publication Number WO/2020/006636
Publication Date 09.01.2020
International Application No. PCT/CA2019/050922
International Filing Date 04.07.2019
IPC
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28
Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
02
containing hydraulic cements other than calcium sulfates
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
C
PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
5
Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
C
PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
5
Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
42
Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
C
PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
7
Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
04
Supplying or proportioning the ingredients
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
40
Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
02
Selection of the hardening environment
C04B 28/02 (2006.01)
B28C 5/00 (2006.01)
B28C 5/42 (2006.01)
B28C 7/04 (2006.01)
C04B 40/02 (2006.01)
CPC
B28C 5/00
B28C 5/42
B28C 7/04
C04B 28/02
C04B 40/02
Applicants
  • CRH GROUP CANADA INC. [CA/CA]; 2300 Steeles Avenue West Concord, Ontario L4K 5X6, CA
Inventors
  • GONG, Bill; CA
Agents
  • ROBIC, LLP; 630 René-Lévesque Boulevard West, 20th Floor Montreal, Québec H3B 1S6, CA
Priority Data
62/693,96204.07.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESSES AND SYSTEMS FOR CARBON DIOXIDE SEQUESTRATION AND RELATED CONCRETE COMPOSITIONS
(FR) PROCÉDÉS ET SYSTÈMES DE SÉQUESTRATION DU DIOXYDE DE CARBONE ET COMPOSITIONS DE BÉTON ASSOCIÉES
Abstract
(EN)
A ready-mixed composition and a pre-mix composition for the production of a concrete material containing sequestered carbon dioxide, a CO2-containing water used in such compositions, dry-batch and wet-batch processes for sequestering carbon dioxide in concrete material, general method and process for sequestering carbon dioxide in hardening concrete, system and ready-mixed truck to perform such processes and methods for the production of a ready-to-cure carbonated concrete. Compositions comprise a concrete mixture and a CO2-containing water. The CO2-containing water comprising water and at least one of blended CO2 gas bubbles, dissolved H2CO3, carbonate ions (CO32-), bicarbonate ions (HCO3-), nanosized alkaline earth metal carbonate and nanosized alkali metal carbonate particles. The concrete mixture comprises a cementitious material, aggregates and at least one CO2-sequestering chemical for accelerating a CO2 sequestration speed and maximizing the captured amount of the carbon dioxide.
(FR)
La présente invention concerne une composition prête à l’emploi et une composition de pré-mélange pour la production d’un matériau de béton contenant du dioxyde de carbone séquestré, de l’eau contenant du CO2- utilisée dans de telles compositions, des procédés en lot sec et en lot humide pour la séquestration du dioxyde de carbone dans un matériau en béton, un procédé général et un procédé de séquestration du dioxyde de carbone dans du béton durci, un système et un camion de prêt à l’emploi pour effectuer de tels procédés et des méthodes de production d’un béton carbonaté prêt à durcir. L’invention concerne également des compositions comprenant un mélange de béton et une eau contenant du CO2-. L’eau contenant du CO2- comprenant de l’eau et au moins l’un parmi des bulles de gaz de CO2 mélangées, du H2CO3 dissous, des ions carbonate (CO3 2-), des ions bicarbonate (HCO3-), des particules de carbonate de métal alcalino-terreux de nanotaille et des particules de carbonate de métal alcalin de nanotaille. Le mélange de béton comprend un matériau cimentaire, des agrégats et au moins un produit chimique de séquestration de CO2 pour accélérer une vitesse de séquestration du CO2 et maximiser la quantité capturée du dioxyde de carbone.
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