Title:
道路舗装用アスファルト組成物
Document Type and Number:
Japanese Patent JP6864012
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 strength after immersion in petroleum, a method for producing the same, and a road paving method.[1] An asphalt composition for road pavement, containing asphalt, a polyester resin, and an aggregate, wherein the polyester resin is one subjected to melt-kneading and a ratio of the polyester resin is 5 parts by mass or more and 50 parts by mass or less based on 100 parts by mass of the 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 used in the mixing step is one subjected to melt-kneading, and a ratio of the polyester resin is 5 parts by mass or more and 50 parts by mass or less based on 100 parts by mass of the asphalt; and [3] a road paving method including a step of laying an asphalt composition obtained by the method of [2], thereby forming an asphalt paving material layer.
Inventors:
Eiji Shirai
Application Number:
JP2018562788A
Publication Date:
April 21, 2021
Filing Date:
January 18, 2017
Export Citation:
Assignee:
Kao Corporation
International Classes:
C08L95/00; C08G63/672; C08G63/78; C08K3/013; C08K3/04; C08L67/00; C08L67/02; E01C7/22; E01C7/30
Domestic Patent References:
| JP2000044808A | ||||
| JP4008766A | ||||
| JP4320453A | ||||
| JP2013222044A | ||||
| JP54069136A | ||||
| JP2000072499A |
Attorney, Agent or Firm:
Otani patent office