A STUDY ON THE PROPERTIES OF ASPHALT AGING IN EXPRESSWAY FOCUSING ON WEATHER DEGRADATION FOR LONG PERIOD
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- HIRATO Toshiaki
- 中央大学理工学研究科 都市環境学専攻
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- MURAYAMA Masato
- 東亜道路工業株式会社 技術研究所
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- TAKAHASHI Shigeki
- 東日本高速道路株式会社 関東支社
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- HIMENO Kenji
- 中央大学理工学部 都市環境学科
Bibliographic Information
- Other Title
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- 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
- チョウキ キョウヨウ サレタ コウソク ドウロ デ モチイタ アスファルト ノ キショウ レッカ ゲンショウ ニ カンスル チョウサ ケッカ
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Abstract
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 ofthe asphalt arising on the actual road.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
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Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering) 70 (3), I_123-I_130, 2015
Japan Society of Civil Engineers
