Abstract
This paper describes how to determine the fatigue-cracking resistance of hot-mix asphalt (HMA) mixtures and formulate a viscoelastic continuum damage algorithm based on the comparison between measured and calculated strain vs. stress histories at low temperatures. The fatigue-cracking resistance characteristics evaluated in this study were based on the dynamic modulus test for material stiffness characterization and the constant-crosshead-rate tension test for fatigue-cracking characterization, using dense-graded and lime-modified HMA mixtures. The main contributions of this paper are the methods for determining the optimum asphalt content of the HMA mixtures to improve fatigue-cracking resistance and for evaluating the fatigue-cracking resistance of various HMA mixtures.
| Original language | English |
|---|---|
| Pages (from-to) | 116-124 |
| Number of pages | 9 |
| Journal | Cold Regions Science and Technology |
| Volume | 61 |
| Issue number | 2-3 |
| DOIs | |
| State | Published - May 2010 |
Keywords
- Direct tension test
- Dynamic modulus
- Hot-mix asphalt
- Lime-modified mixture
- Viscoelastic continuum damage