US 12,466,769 B2
Methods of forming asphalt pavement using foamed asphalt compositions
Wei Wang, Shanghai (CN); Ruixing Yuan, Shanghai (CN); Yuansheng Shen, Shanghai (CN); Xiang Wang, Shanghai (CN); and Jun Li, Shanghai (CN)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Dec. 14, 2021, as Appl. No. 17/644,122.
Application 17/644,122 is a continuation of application No. 15/370,683, filed on Dec. 6, 2016, abandoned.
Claims priority of provisional application 62/273,742, filed on Dec. 31, 2015.
Prior Publication US 2022/0106229 A1, Apr. 7, 2022
Int. Cl. C04B 26/26 (2006.01); C04B 24/26 (2006.01); C08L 95/00 (2006.01); E01C 7/18 (2006.01); B01F 25/31 (2022.01); B01F 101/38 (2022.01); B09B 101/40 (2022.01); C04B 111/00 (2006.01)
CPC C04B 26/26 (2013.01) [C04B 24/2611 (2013.01); C08L 95/00 (2013.01); E01C 7/18 (2013.01); B01F 25/3111 (2022.01); B01F 2101/38 (2022.01); B09B 2101/40 (2022.01); C04B 2111/0075 (2013.01); C08L 2555/30 (2013.01); C08L 2555/34 (2013.01); Y02W 30/91 (2015.05)] 12 Claims
OG exemplary drawing
 
1. A method of forming asphalt pavement, said method comprising the steps of:
combining a base asphalt component, an oxidized high density polyethylene, and an additional polyethylene different from the oxidized high density polyethylene and selected from non-oxidized polyethylene homopolymer, oxidized low density polyethylene, and a combination thereof to form an asphalt mixture, wherein the mixture has a viscosity of at least about 30,000 Pa·s at a temperature of 60° C. and a viscosity of less than about 150 cP at a temperature of 160° C., wherein viscosity is determined in accordance with ASTM D4402;
foaming the asphalt mixture using water and compressed air to form a foamed asphalt composition;
combining the foamed asphalt composition and a recycled asphalt component to form a recycled asphalt composition; and
forming a recycled asphalt layer with the recycled asphalt composition.