The use of Reclaimed Asphalt Pavement (RAP) in virgin mixtures is an effective means of promoting sustainability. The objective of this research was to investigate the effect of rejuvenated binder on the rutting performance and moisture susceptibility of high RAP content mixtures. All mixtures were tested at three aging levels, one short-term aging level, and two long-term aging levels. The performance of the specimens and the level of diffusion were measured and compared, and the correlation between binder test and rutting test results was evaluated. Based on the results, the degree of diffusion is not a determining factor in the performance of the mixture. However, the amount of the rejuvenator and Superpave performance grading (PG) of the rejuvenated binder is the most effective parameter. Results indicate that the short-term aged recycled mix exhibits a better rutting resistance than the virgin mix when its HTPG is 6°C higher than the virgin mix.

中文翻译：

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再生粘结剂对不同老化程度的路面车辙性能的影响

在原始混合物中使用再生沥青路面（RAP）是促进可持续性的有效手段。这项研究的目的是研究再生的粘结剂对高RAP含量的混合物的车辙性能和湿气敏感性的影响。所有混合物均在三种老化水平下进行测试，一种是短期老化水平，另一种是两种长期老化水平。测量并比较样品的性能和扩散水平，并评估粘合剂测试和车辙测试结果之间的相关性。根据结果​​，扩散程度不是混合物性能的决定因素。然而，再生的粘合剂的量和再生的粘合剂的Superpave性能等级（PG）是最有效的参数。