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Failure Behavior of Bituminous Mixtures

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Title: Failure Behavior of Bituminous Mixtures
Authors: Sugawara, Teruo Browse this author →KAKEN DB
Moriyoshi, Akihiro Browse this author →KAKEN DB
Kamijima, Tsuyoshi Browse this author
Kasahara, Atsushi Browse this author →KAKEN DB
Issue Date: 25-Apr-1975
Publisher: Japan Petroleum Institute
Journal Title: Bulletin of the Japan Petroleum Institute
Volume: 17
Issue: 1
Start Page: 35
End Page: 42
Abstract: This paper describes the test results concerning the failure behavior of bituminous mixtures which is required for rational designing of pavement structures and pavement performance evaluation. For single load application tests, stress-strain relationships of bituminous mixtures were investigated under various loading conditions at various temperatures, and, at the same time, dynamic responses under repeated applications of load and fatigue properties of bituminous mixtures were investigated. For conventional bituminous mixtures, it was found that strain at failure was in the order of 10^[-5] to 10^[-2], depending upon the loading and temperature conditions. In spite of the fact that strain at failure in the single load application test was in the order of 10^[-3] to 10^[-2], it was shown that the strain level of 10^[-4] and 10^[-5] in the repeated applications of load and temperature conditions caused fatigue failure. Most of single load application tests were carried out by means of flexure; and the mode of failure, relationships between strength vs. temperature, strain at failure vs. temperature, and stiffness at failure vs. temperature were obtained; and convergence of the strain in ductile failure zone, (2~5)×10^[-2], and in the brittle failure zone, (1~2)×10^[-3], was obtained. As a result of beam flexure tests, the movement of the transition point at which the mode of failure showed a change in the mode from brittle to ductile was observed. It was found that the movement depended upon the rate of strain, binder content, and type of mixture, but failure strains at transition points converged to 4×10^[-3] to 6×10^[-3], independently of the type of binder, rate of strain etc. The effects of rate of strain, binder content, type of mixture and type of binder on rheological properties (strength, strain at failure etc.) of bituminous mixtures were investigated. With reference to repeated applications of load, an electro-hydraulic apparatus was constructed in our laboratory to investigate the dynamic responses and fatigue properties of bituminous mixtures and tests were performed under various loading and temperature conditions. The effects of the level of applied strain and temperature on the rheological properties of the bituminous mixtures were also investigated.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 森吉 昭博

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