US 12,435,004 B2
Methods and compositions to increase performance of asphalt cement concrete comprising recycled asphalt pavement
Joseph A. Dennis, Lebanon, OH (US); Steven Santa Cruz, San Diego, CA (US); and Phillip B. Blankenship, Richmond, KY (US)
Assigned to Surface Tech LLC, La Jolla, CA (US)
Filed by Surface Tech LLC, La Jolla, CA (US)
Filed on Apr. 8, 2024, as Appl. No. 18/629,742.
Application 18/629,742 is a continuation of application No. 18/130,342, filed on Apr. 3, 2023, granted, now 11,976,008.
Application 18/130,342 is a continuation of application No. 16/888,180, filed on May 29, 2020, granted, now 11,618,713, issued on Apr. 4, 2023.
Prior Publication US 2024/0270648 A1, Aug. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 26/26 (2006.01); C04B 16/06 (2006.01); C04B 20/10 (2006.01); C04B 40/00 (2006.01); C04B 111/00 (2006.01); E01C 19/10 (2006.01); E01C 19/48 (2006.01)
CPC C04B 26/26 (2013.01) [C04B 16/0691 (2013.01); C04B 20/1029 (2013.01); C04B 40/0046 (2013.01); E01C 19/1004 (2013.01); E01C 19/48 (2013.01); C04B 2111/0075 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of producing hot-mix asphalt (“HMA”) to form asphalt cement concrete (“ACC”) pavement, comprising:
adding recycled asphalt pavement (“RAP”) and reinforcing fiber to an aggregate to form a combined aggregate; and
adding asphalt binder and a liquid binder modifier to the combined aggregate, to form a mixture,
wherein the liquid binder modifier lowers an asphalt binder low temperature grade of the combined aggregate by at least one grade.
 
12. A hot-mix asphalt (“HMA”) paving material comprising:
an aggregate including:
recycled asphalt pavement (“RAP”) including oxidized bitumen;
asphalt binder;
reinforcing fibers; and
a liquid binder modifier that lowers the asphalt binder low temperature grade of the aggregate by at least one grade.