A STUDY ON THE PROPERTIES OF ASPHALT AGING IN EXPRESSWAY FOCUSING ON WEATHER DEGRADATION FOR LONG PERIOD

長期供用された高速道路で用いたアスファルトの気象劣化現象に関する調査結果

The field excavation of asphalt pavement was conducted in the expressways where East Nippon Expressway Company manage, to investigate how the aging effects from surface to subgrade layer. From the result of this investigations, it is evidenced that the aging of asphalt has attained to not only the surface but also the asphalt stabilization subgrade, and the penetration of asphalt in porous asphalt mixture decreased more rapidly than that of dense-graded asphalt mixture. As a result of further laboratory test based on the aforementioned investigation results, it is indicated that conducting accelerated aging test considering mixture type is necessary to simulate the aging of the asphalt arising on the actual road.　東日本高速道路株式会社が管理する高速道路において，舗装の開削調査を行い，アスファルト舗装の表面から深さ方向への劣化の影響度を調査した．本調査の結果から，アスファルト舗装の劣化は表面のみならず，アスファルト安定処理路盤にも及んでいること，ポーラスアスファルト混合物では密粒度アスファルト混合物と比較し，針入度の低下が速いことが確認された．さらに，これらの調査結果を踏まえて室内試験を行った結果，実際の道路で生じているアスファルトの劣化をシミュレートするためには，バインダ単体を劣化させるだけでなく，使用する混合物の配合を考慮した促進劣化試験を行う必要があることを示した．

• Record URL:
  https://doi.org/10.2208/jscejpe.70.I_123
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=A+STUDY+ON+THE+PROPERTIES+OF+ASPHALT+AGING+IN+EXPRESSWAY+FOCUSING+ON+WEATHER+DEGRADATION+FOR+LONG+PERIOD&author=T.+Hirato&author=M.+Murayama&author=S.+Takahashi&author=K.+HIMENO&publication_year=2015
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/21856559
• Authors:
  • Hirato, Toshiaki
  • Murayama, Masato
  • Takahashi, Shigeki
  • HIMENO, KENJI
• Publication Date: 2015

Language

• English
• Japanese

Media Info

• Media Type: Web
• Pagination: pp I_123-I_130
• Serial:
  • Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
  • Volume: 70
  • Issue Number: 3
  • Publisher: Japan Society of Civil Engineers
  • ISSN: 2185-6559
  • Serial URL: https://www.jstage.jst.go.jp/browse/jscejpe/-char/en

Subject/Index Terms

• TRT Terms: Aging (Materials); Asphalt mixtures; Asphalt pavements; Dense graded aggregates; Expressways; Porous pavements; Weather conditions
• Subject Areas: Highways; Maintenance and Preservation; Pavements; I52: Construction of Pavements and Surfacings; I60: Maintenance;

Filing Info

• Accession Number: 01564543
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: May 26 2015 4:12PM