US 11,898,039 B2
Additive for asphalt mixes containing reclaimed bituminous products
Juan Antonio Gonzalez Leon, Lyons (FR); Gilles Barreto, Messimy (FR); and Vincent Luca, Solaize (FR)
Assigned to ARKEMA FRANCE, Colombes (FR)
Filed by ARKEMA FRANCE, Colombes (FR)
Filed on Oct. 18, 2018, as Appl. No. 16/164,020.
Application 16/164,020 is a continuation of application No. 14/348,916, granted, now 10,119,026, previously published as PCT/EP2012/070248, filed on Oct. 12, 2012.
Claims priority of provisional application 61/546,124, filed on Oct. 12, 2011.
Claims priority of application No. 11.59198 (FR), filed on Oct. 12, 2011.
Prior Publication US 2019/0048191 A1, Feb. 14, 2019
Int. Cl. C08L 95/00 (2006.01); C04B 26/26 (2006.01); C04B 26/00 (2006.01); C04B 40/00 (2006.01); C08K 5/3445 (2006.01); C08K 5/36 (2006.01); C08K 5/52 (2006.01); C04B 111/00 (2006.01)
CPC C08L 95/00 (2013.01) [C04B 26/006 (2013.01); C04B 26/26 (2013.01); C04B 40/0039 (2013.01); C08K 5/3445 (2013.01); C08K 5/36 (2013.01); C08K 5/52 (2013.01); C04B 2111/0075 (2013.01); C08L 2555/34 (2013.01); Y02W 30/91 (2015.05)] 23 Claims
OG exemplary drawing
 
1. A process for the preparation of an asphalt mix, comprising mixing together, in any order:
(a) fresh aggregate,
(b) fresh bitumen,
(c) at least one recycled bituminous product containing aged bitumen and reclaimed aggregate, and
(d) at least one surfactant, which surfactant functions as a rejuvenator of the said aged bitumen and the at least one surfactant is of formula A1:
[A-O—B—]dZ  (A1)
wherein:
A is chosen from hydrogen and a group G or

OG Complex Work Unit Chemistry
G represents a linear or branched, saturated or unsaturated, C1-C30 hydrocarbon chain, optionally containing at least one aromatic cycle, and optionally substituted by at least one phosphate group,
B represents a bond or a divalent group containing at least one alkylene oxide repeating unit,
d represents 1 or 2, and
Z represents a radical of formula Z1 or Z2:

OG Complex Work Unit Chemistry
wherein R is hydrogen or a linear or branched C1-C6 alkyl, f is 0 or 1 or 2, e is 0 or 1, and d+e+f is 3, provided that when d is 2, then Z is Z1, e is 0 and P is linked to two identical or different groups [A-O—B—], and provided that in the case where d is 1, Z may also represent hydrogen or a group G or

OG Complex Work Unit Chemistry
and wherein the mixing involves 2 wt % to 5.5 wt % of the fresh bitumen with respect to the total weight of the fresh and reclaimed aggregate, and with the mixing resulting in an asphalt mix with an indirect tensile strength (ITS) of at about 2.0 or more MPa, measured using an Instron universal testing machine on compression at a 50 mm/min rate at a temperature of 20° C.