US 12,269,776 B2
Permeable, pourable concrete formulas and methods of use
Dean R. Tonder, Hollister, CA (US); and Tim Donovan, Gilroy, CA (US)
Assigned to Pacific Interlock Pavers, Inc., Hollister, CA (US)
Filed by Pacific Interlock Pavers, Inc., Hollister, CA (US)
Filed on Dec. 17, 2021, as Appl. No. 17/644,978.
Prior Publication US 2023/0192550 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 28/00 (2006.01); C04B 14/06 (2006.01); C04B 14/28 (2006.01); C04B 18/14 (2006.01); C04B 28/04 (2006.01); C04B 103/22 (2006.01)
CPC C04B 28/04 (2013.01) [C04B 14/06 (2013.01); C04B 14/28 (2013.01); C04B 18/141 (2013.01); C04B 2103/22 (2013.01); C04B 2201/50 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method for producing a permeable concrete utilizing supplemental cementitious materials (SCMs) recovered from CO2 flue gases, having a water permeability in excess of 95-100 inches per hour and having an average compressive strength in excess of about 3000 psi, the method comprising the following steps;
Combining (i) a base of 3 parts by weight of blast-furnace slag and 1 part by weight of sand, (ii) between about one fifth and one half parts by weight of ¼″ gravel, and (iii) between 15 and 21 parts by weight Portland-type or equivalent cement wherein up to 40% of the Portland-type or equivalent cement comprises SCMs formed by mineralization of CO2;
Forming a concrete mix using a water ratio of between 15.25 gallons of water per yard of mixed concrete to 25 gallons of water per yard of mixed concrete;
Pouring the mixed concrete into a predetermined form; and
Setting the concrete for a sufficient period of time in order to achieve the compressive strength.