Title:
道路舗装用アスファルト組成物
Document Type and Number:
Japanese Patent JP6852855
Kind Code:
B2
Abstract:
The present invention relates to an asphalt composition for road pavement, which is excellent in drying strength, strength after immersion in water, and bending strength, a method for producing the same, and a road paving method. [1] An asphalt composition for road pavement including asphalt, a polyester resin and an aggregate, wherein the polyester resin is a specific polyester, and the ratio of the polyester resin is 2 parts by mass or more and 30 parts by mass or less based on 100 parts by mass of asphalt; [2] a method for producing an asphalt composition for road pavement, including a step of mixing asphalt, a polyester resin, and an aggregate at 130°C or higher and 200°C or lower, wherein the polyester resin is the polyester in [1], and the ratio of the polyester resin is 2 parts by mass or more and 30 parts by mass or less based on 100 parts by mass of asphalt; and [3] a road paving method including a step of laying the asphalt composition obtained by the method of [2], thereby forming an asphalt paving material layer.
Inventors:
Eiji Shirai
Application Number:
JP2017005111A
Publication Date:
March 31, 2021
Filing Date:
January 16, 2017
Export Citation:
Assignee:
Kao Corporation
International Classes:
E01C7/30; C08K3/00; C08L67/06; C08L95/00; E01C7/22
Domestic Patent References:
| JP2005126998A |
Attorney, Agent or Firm:
Tamotsu Otani
Makoto Kataoka
Makoto Kataoka