US 12,145,884 B2
Asphalt slurry seal composition
Eric Berget, Sharonville, OH (US); Rolf A. Ahonen, Temecula, CA (US); and Dino D. Papagianidis, Mason, OH (US)
Assigned to Omya International AG, Oftringen (CH)
Filed by Omya International AG, Oftringen (CH)
Filed on Nov. 9, 2021, as Appl. No. 17/454,189.
Prior Publication US 2023/0147210 A1, May 11, 2023
Int. Cl. C04B 26/26 (2006.01); C04B 14/02 (2006.01); C04B 14/10 (2006.01); C04B 14/28 (2006.01); C04B 18/04 (2006.01); C04B 24/04 (2006.01); C04B 103/00 (2006.01)
CPC C04B 26/26 (2013.01) [C04B 14/022 (2013.01); C04B 14/104 (2013.01); C04B 14/28 (2013.01); C04B 18/0481 (2013.01); C04B 24/045 (2013.01); C04B 2103/0079 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An asphalt slurry seal with improved durability comprising:
a mineral filler comprising an inorganic mineral blend, wherein the inorganic mineral blend is a calcium carbonate mineral blend; and wherein
the calcium carbonate mineral blend has a multi-modal particle size distribution comprising at least a first maximum and a second maximum, wherein
a. the first maximum is in the range of about 0.1 μm to about 15 μm;
b. the second maximum is in the range of about 5 μm to about 35 μm; and
c. about 5 wt. % to about 40 wt. % of the particles in the calcium carbonate mineral blend (dry weight) fall within a first distribution represented by the first maximum and are in the range of about 0.1 μm to about 15 μm; and
d. the particles of the first maximum have a BET specific surface area of about 4 m2/g to about 15 m2/g;
a pigment component comprising at least one pigment, wherein the at least one pigment comprises carbon black;
an additive component comprising at least one rheology modifier;
an asphalt emulsion; and
water.