Patent ID: 11168215

Abstract:
The present invention relates to an asphalt composition having excellent durability after being dried, an asphalt mixture, and a method for producing an asphalt mixture.Disclosed are [1] an asphalt composition containing asphalt, a thermoplastic elastomer, and a polyester, wherein the polyester has a softening point of 90° C. or higher and 140° C. or lower and a glass transition point of 40° C. or higher and 80° C. or lower, and a ratio of the polyester is 1 part by mass or more and 17 parts by mass or less based on 100 parts by mass of the asphalt; [2] an asphalt mixture including the asphalt composition as set forth [1] and an aggregate; and [3] a method for producing an asphalt mixture, including a step of mixing a heated aggregate, asphalt, a thermoplastic elastomer, and a polyester, wherein the polyester has a softening point of 90° C. or higher and 140° C. or lower and a glass transition point of 40° C. or higher and 80° C. or lower, and a ratio of the polyester is 1 part by mass or more and 17 parts by mass or less based on 100 parts by mass of the asphalt.