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首页> 外文会议>COTA international conference of transportation professionals >Characterization of Permanent Deformation of Different Asphalt Pavements Using the Advanced Repeated Load Permanent Deformation Test
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Characterization of Permanent Deformation of Different Asphalt Pavements Using the Advanced Repeated Load Permanent Deformation Test

机译：使用先进的重复载荷永久性变形试验表征不同沥青路面的永久变形

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An advanced repeated load permanent deformation (ARLPD) test that can simulate the lateral confinement and temperature gradient in actual pavements was employed in this study. The test was conducted based on field cores and laboratory-made specimens of several newly constructed hot mix asphalt (HMA) pavements, reclaimed asphalt pavements (RAP), and asphalt overlay pavements. The rutting resistance and distribution were evaluated using various rutting indicators. It is found that newly constructed HMA layers using the SBS modified binder show a great improvement in the rutting resistance. Overlay and hot in-place recycling (HIR) pavements exhibit similar anti-rutting performance. The cold in-place recycling (CIR) mixture could be used in the bottom asphalt layer for highway maintenance. For overlay and HIR pavements, the new top asphalt layer contributes approximately half of the total rut depth. The rutting distribution is relatively uniform when SBS modified binder is used in the middle asphalt layer.
机译：本研究采用了可以模拟实际路面中的横向限制和温度梯度的先进重复负载永久变形（ARLPD）试验。该测试是基于几个新建的热混合沥青（HMA）路面的野外核和实验室制造的标本，再生沥青路面（RAP）和沥青覆盖路面。使用各种车辙指示剂评估车辙抗性和分布。发现使用SBS改性粘合剂的新构建的HMA层显示出耐压性的巨大改善。覆盖和热处理回收（HIR）路面具有类似的防车展性能。冷却地回收（CIR）混合物可用于公路维护的底部沥青层。对于覆盖层和HIR路面，新顶级沥青层占总车辙深度的大约一半。当在中间沥青层中使用SBS改性粘合剂时，车辙分布相对均匀。

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