US 11,773,019 B2
Methods and compositions for concrete production
George Sean Monkman, Montreal (CA); Kevin Cail, Sarasota, FL (US); Paul J. Sandberg, Beverly, MA (US); Mark MacDonald, Halifax (CA); Joshua Jeremy Brown, Lower Sackville (CA); and Dean Paul Forgeron, White's Lake (CA)
Assigned to CARBONCURE TECHNOLOGIES INC., Dartmouth (CA)
Filed by CarbonCure Technologies Inc., Dartmouth (CA)
Filed on Sep. 13, 2017, as Appl. No. 15/703,522.
Application 15/703,522 is a continuation of application No. 15/650,524, filed on Jul. 14, 2017.
Application 15/650,524 is a continuation of application No. 15/649,339, filed on Jul. 13, 2017, abandoned.
Application 15/649,339 is a continuation of application No. 15/157,205, filed on May 17, 2016, granted, now 9,738,562, issued on Aug. 22, 2017.
Application 15/157,205 is a continuation of application No. 14/950,288, filed on Nov. 24, 2015, abandoned.
Application 14/950,288 is a continuation in part of application No. 14/701,456, filed on Apr. 30, 2015, granted, now 9,388,072, issued on Aug. 18, 2015.
Application 14/701,456 is a continuation of application No. PCT/CA2014/050611, filed on Jun. 25, 2014.
Application PCT/CA2014/050611 is a continuation in part of application No. 14/249,308, filed on Apr. 9, 2014, granted, now 9,108,883.
Claims priority of provisional application 62/240,843, filed on Oct. 13, 2015.
Claims priority of provisional application 62/165,670, filed on May 22, 2015.
Claims priority of provisional application 62/160,350, filed on May 12, 2015.
Claims priority of provisional application 62/146,103, filed on Apr. 10, 2015.
Claims priority of provisional application 62/096,018, filed on Dec. 23, 2014.
Claims priority of provisional application 62/086,024, filed on Dec. 1, 2014.
Claims priority of provisional application 62/083,784, filed on Nov. 24, 2014.
Claims priority of provisional application 61/980,505, filed on Apr. 16, 2014.
Claims priority of provisional application 61/938,063, filed on Feb. 10, 2014.
Claims priority of provisional application 61/925,100, filed on Jan. 8, 2014.
Claims priority of provisional application 61/879,049, filed on Sep. 17, 2013.
Claims priority of provisional application 61/847,254, filed on Jul. 17, 2013.
Claims priority of provisional application 61/839,312, filed on Jun. 25, 2013.
Prior Publication US 2018/0118622 A1, May 3, 2018
Int. Cl. B28C 5/00 (2006.01); C04B 22/10 (2006.01); C04B 28/04 (2006.01); C04B 40/00 (2006.01); C04B 40/02 (2006.01); B28C 5/18 (2006.01); C04B 28/02 (2006.01); B28C 5/08 (2006.01); C04B 28/08 (2006.01); B28C 7/02 (2006.01); B28C 5/46 (2006.01); B28C 5/42 (2006.01); C04B 111/00 (2006.01)
CPC C04B 22/10 (2013.01) [B28C 5/0806 (2013.01); B28C 5/1856 (2013.01); B28C 5/422 (2013.01); B28C 5/46 (2013.01); B28C 7/02 (2013.01); C04B 28/02 (2013.01); C04B 28/021 (2013.01); C04B 28/04 (2013.01); C04B 28/08 (2013.01); C04B 40/0032 (2013.01); C04B 40/0231 (2013.01); C04B 2111/00017 (2013.01); Y02P 40/18 (2015.11); Y02W 30/91 (2015.05)] 12 Claims
 
1. 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%.