Abstract
To further explore the influence of the filler/binder (F/B) ratio on the fatigue behavior of epoxy asphalt concrete (EAC), in this study, three typical F/B ratios are designed according to the EAC pavement of steel bridges in China, including 1.49, 1.95 and 2.48. The four-point fatigue behavior of the EAC with various F/B ratios was tested and analyzed. The results show that a higher F/B ratio leads a more rapid increase in the ratio of dissipated energy change (RDEC) during limited loading repetitions, as well as an increased likelihood of irreversible damage and a shorter fatigue life for the EAC. To ensure adequate fatigue performance of the EAC, it is recommended that the F/B ratio be controlled below 1.95.
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