Fatigue performance of bridge deck pavement materials
Shaopeng Wu , Guang Zhang , Jun Han , Gang Liu , Jie Zhou
Journal of Wuhan University of Technology Materials Science Edition ›› 2009, Vol. 24 ›› Issue (2) : 318 -320.
Fatigue performance of bridge deck pavement materials
Three beam samples of bridge deck pavement were prepared, with gradation types of AC-13, and AC-16 and combined AC-13+AC-16. Four-point bending test was adopted to investigate the fatigue performance of these beam samples. The experimental results indicate that the initial bending stiffness is related to the type of beam sample and testing temperature. Fatigue life of these samples decreases as the increase of the controlled strain level. The AC-13 beam sample exhibits better fatigue resistance and bigger limiting bending strain at the given strain level and temperature. Compared with single beam sample, the fatigue performance of combining beam sample is relatively poor.
bridge deck pavement / beam sample / four-point bending test / fatigue
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