Carbon dioxide treatment of concrete upstream from product mold
AssigneeCarboncure Technologies Inc.
InventorsRobert Niven, George Sean Monkman, Dean Paul Forgeron
Life of this patent
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Abstract
Fresh concrete is treated with carbon dioxide prior to delivery to a product mold for forming concrete products. Carbon dioxide gas is directed through a manifold, which may be coupled to a feedbox or a hopper, upstream from the product mold. Treating the fresh concrete with the carbon dioxide gas while it is in a loose state prior to placement in the product mold may generally promote uniform and enhanced carbon dioxide uptake.
Claims19
An apparatus for forming concrete products comprising:
- (i) a product mold adapted to form the concrete products;
- (ii) a component upstream from the product mold and downstream from a mixer, and adapted to deliver concrete directly or indirectly to the product mold;
- and
- (iii) a gas delivery system configured to direct carbon dioxide onto a surface of fresh concrete held in the component or at a stream of fresh concrete released by the component, wherein the gas delivery system comprises at least one gas manifold comprising a plurality of apertures, wherein the apertures are positioned to not be in contact with the concrete, and wherein the apertures are open to the atmosphere.
An apparatus for forming concrete products comprising:
- (i) a product mold adapted to form the concrete products;
- (ii) a component upstream from the product mold and downstream from a mixer, and adapted to deliver concrete directly or indirectly to the product mold;
- and
- (iii) a gas delivery system configured to treat fresh concrete held in the component or released from the component with carbon dioxide to form treated concrete that is delivered to the product mold, wherein the gas delivery system comprises at least one gas manifold comprising a plurality of apertures, wherein the apertures are positioned to not be in contact with the concrete, and wherein the apertures are open to the atmosphere;
- and
- (iv) one or more sensors and a controller configured to synchronize the delivery of the carbon dioxide with an action of the component, an action of a subcomponent of the component, a step of a production cycle, or any combination thereof.
An apparatus for forming concrete products comprising:
- (i) a product mold adapted to form the concrete products;
- (ii) a component upstream from the product mold and downstream from a mixer, that contains fresh concrete;
- and
- (iii) a gas delivery system configured to direct carbon dioxide onto a surface of the fresh concrete held in the component or at a stream of fresh concrete released by the component, wherein the gas delivery system comprises at least one gas manifold comprising a plurality of apertures wherein the apertures are positioned to not be in contact with the concrete, and
- wherein the apertures are open to the atmosphere.
Dependencies are inferred from the claim text.