US 12,084,577 B2
Asphalt emulsion surface treatment containing sterol
Gerald H. Reinke, La Crosse, WI (US); Gaylon L. Baumgardner, Arkadelphia, AR (US); and Andrew Hanz, LaCrosse, WI (US)
Assigned to A.L.M. Holding Company, Onalaska, WI (US); and Ergon Asphalt & Emulsions, Inc., Jackson, MS (US)
Filed by A.L.M. Holding Company, Onalaska, WI (US); and Ergon Asphalt & Emulsions, Inc., Jackson, MS (US)
Filed on Jun. 14, 2023, as Appl. No. 18/209,922.
Application 18/209,922 is a division of application No. 16/757,697, granted, now 11,718,756, previously published as PCT/US2018/055443, filed on Oct. 11, 2018.
Application 16/757,697 is a continuation of application No. 15/886,605, filed on Feb. 1, 2018, granted, now 11,542,668, issued on Jan. 3, 2023.
Claims priority of provisional application 62/574,867, filed on Oct. 20, 2017.
Prior Publication US 2023/0323126 A1, Oct. 12, 2023
Int. Cl. C08L 95/00 (2006.01); C04B 24/02 (2006.01); C04B 26/26 (2006.01); C08K 5/05 (2006.01); C08L 91/00 (2006.01); E01C 7/35 (2006.01); E01C 11/00 (2006.01); C04B 111/00 (2006.01)
CPC C08L 95/00 (2013.01) [C04B 24/02 (2013.01); C04B 26/26 (2013.01); C08K 5/05 (2013.01); C08L 91/00 (2013.01); C08L 95/005 (2013.01); E01C 7/353 (2013.01); E01C 11/005 (2013.01); C04B 2111/00612 (2013.01); C04B 2111/0075 (2013.01); C08L 2207/22 (2013.01); C08L 2555/28 (2013.01); C08L 2555/34 (2013.01); C08L 2555/60 (2013.01); Y02W 30/91 (2015.05)] 13 Claims
 
1. A method of road paving comprising:
providing sterol-containing asphalt binder emulsion, wherein sterol is added to an asphalt binder from 0.5 to 15 wt. % of the sterol based on the asphalt binder before emulsification;
combining the sterol-containing asphalt binder emulsion with aggregate to form an asphalt paving material;
applying the asphalt paving material atop an asphalt pavement layer; and
compacting the applied asphalt paving material to form a road pavement having a sterol-containing topcoat layer.