Development of the indirect ring tension fracture test for hot mix asphalt

Alireza Zeinali, Kamyar C. Mahboub, Phillip B. Blankenship

Research output: Contribution to journalConference articlepeer-review

Abstract

Almost all of the current hot mix-asphalt (HMA) fracture tests are considered to be research tools. This paper describes the development of the indirect ring tension (IRT) fracture test for HMA, which was designed to be an effective and user-friendly test that could be used at the DOT level. Numerical modeling was utilized to calibrate the stress intensity factor formula of the IRT fracture test for various specimen dimensions. The results of this extensive analysis were encapsulated in a single equation. An experimental plan was developed to optimize the test parameters for HMA specimens. The experiment results revealed that the test is highly repeatable and capable of capturing the variations in the fracture properties of HMA. Moreover, the data from laboratory tests were utilized to estimate the maximum allowable crack lengths for the pavements based on a viscoelastic model.

Original languageEnglish
Pages (from-to)373-406
Number of pages34
JournalAsphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions
Volume83
Issue numberJanuary
DOIs
StatePublished - 2014
EventAsphalt Paving Technology 2014, AAPT 2014 - Atlanta, United States
Duration: Mar 16 2014Mar 19 2014

Bibliographical note

Funding Information:
The authors wish to thank Asphalt Institute for providing all the equipment and materials used in this research. The authors also like to thank Mr R. Michael Anderson, the director of research and laboratory services at Asphalt Institute, for his interest in and support of the testing programme. Additionally, the authors wish to thank the University of Kentucky for its support of this work.

Publisher Copyright:
© 2014 Taylor & Francis.

Keywords

  • Fracture test
  • Hot mix asphalt
  • Indirect ring tension
  • Performance test

ASJC Scopus subject areas

  • Civil and Structural Engineering

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