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Ductile fracture assessment of Indonesian wearing course mixtures using critical J integral and crack tip opening angle

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Abstract:

At normal service temperatures, a wearing course asphalt mixture may exhibit ductile fracture. The objectives of the present study are to evaluate and discuss the ductile fracture properties of Indonesian wearing course mixtures (IWCM) using the critical J integral (Jc) and crack tip opening angle (CTOA). The notched semi circular bending (SCB) beam test was employed to determine these values. For the notched SCB beam test, six types of IWCM specimens were prepared. The test results showed that the Jc and CTOA values varied within the ranges of 0.13-0.76 kJ m- 2 and 0.0-8.07°, respectively. Jc and CTOA are useful to comprehensively evaluate the ductile fracture properties of IWCM. The present paper also addresses the effect of stone and manufactured sand particles on the Jc and CTOA of IWCM.

Keywords: 65K05; 90C30

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/10298430701363110

Affiliations: Nagaoka University of Technology, Nagaoka, Japan

Publication date: June 1, 2008

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