Estimation of fatigue characteristics of asphaltic mixes using simple tests

Estimation of fatigue characteristics of asphaltic mixes using simple tests

Medani, T.O.
Molenaar, A.A.A.

Civil Engineering and Geosciences

Laboratory for Road and Railroad Research

2000-01-01

A simplified procedure for estimation of fatigue characteristics of asphaltic mixes is presented. The procedure requires the determination of the so-called master curve (Le. the relationship between the mix stiffness, the loading time and the temperature), the asphalt properties and the mix composition. It is shown that the master curve does not only give information about the variation of the mix stiffness, the loading time and the temperature, but also on the fatigue behaviour of asphaltic mixes. This information can reliably be obtained from rather simple tests, which can be performed in any road-engineering laboratory. Procedures of the determination of the fatigue characteristics of asphaltic mixes from simple tests are of special interest in mix design procedures where the quality of various mixes with respect to fatigue and crack resistance has to be evaluated. It is obvious that such a procedure is also extremely attractive for specification and pavement evaluation purposes. An insight is provided as to how the fatigue parameters for an asphaltic mix can be estimated using the Wohler approach.

fatigue
master curve
Wohler approach
simple tests

http://resolver.tudelft.nl/uuid:f5d12c4c-5bc7-4782-b804-7e6fed144057

Delft University of Technology

0046-7316

HERON, vol. 45 (3), 2000

Institutional Repository

journal article

(c) 2000 Medani, T.O.; Molenaar, A.A.A.