Back to results
US 11,773,019 B2Granted
Methods and compositions for concrete production
AssigneeCarboncure Technologies Inc.
InventorsGeorge Sean Monkman, Kevin Cail, Paul J. Sandberg, Mark MacDonald, Joshua Jeremy Brown, Dean Paul Forgeron
Life of this patent
Estimating the term…
Abstract
The invention provides compositions and methods directed to carbonation of a cement mix during mixing. The carbonation may be in a stationary mixer or a transportable mixer, such as a drum of a ready-mix truck.
Claims12
A method for treating wash water from a concrete production process comprising:
- exposing the wash water to carbon dioxide at a concentration greater than that of carbon dioxide in the atmosphere to produce carbonated wash water;
- and
- adding at least a portion of the carbonated wash water to a concrete mixer that is open to the atmosphere so that the carbonated wash water mixes with a cement mix in the mixer to produce a carbonated cement mix, wherein the carbonated wash water comprises at least 6 g of carbon dioxide/L of water, and efficiency of carbonation of the cement mix is at least 60%.
Dependencies are inferred from the claim text.