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 language | English |
|---|---|
| Pages (from-to) | 373-406 |
| Number of pages | 34 |
| Journal | Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions |
| Volume | 83 |
| Issue number | January |
| DOIs | |
| State | Published - 2014 |
| Event | Asphalt Paving Technology 2014, AAPT 2014 - Atlanta, United States Duration: Mar 16 2014 → Mar 19 2014 |
Bibliographical note
Publisher Copyright:© 2014 Taylor & Francis.
Keywords
- Fracture test
- Hot mix asphalt
- Indirect ring tension
- Performance test
ASJC Scopus subject areas
- Civil and Structural Engineering