In this study, the fatigue performance of asphalt mixtures with high reclaimed asphalt pavement (RAP) content and rejuvenating agents (RA) has been investigated at the level of fine aggregate matrix (FAM) mix. Fatigue tests were conducted on four mixes: FAM without RAP, FAM with 25% RAP binder replacement, FAM with 25% RAP and two types of rejuvenators. Both the linear amplitude sweep (LAS) and conventional time sweep fatigue testing were used. The comparison between mixes with RAP and without RAP indicated that the addition of RAP results in a higher stiffness and faster damage rate as expected. Adding rejuvenators to the FAM mixes with RAP did not cause an appreciable reduction of stiffness. The incorporation of rejuvenators may improve the damage resistance and extend the fatigue life of FAM mixes with RAP; however, they were still inferior to the virgin FAM mix without RAP in terms of cracking resistance.

在这项研究中，在细骨料基质 (FAM) 混合料的水平上研究了具有高再生沥青路面 (RAP) 含量和再生剂 (RA) 的沥青混合料的疲劳性能。对四种混合物进行了疲劳测试：不含 RAP 的 FAM、含 25% RAP 粘合剂替代物的 FAM、含 25% RAP 的 FAM 和两种类型的再生剂。线性振幅扫描 (LAS) 和传统的时间扫描疲劳测试都被使用。与 RAP 和没有 RAP 的混合物之间的比较表明，添加 RAP 会导致预期的更高的刚度和更快的损坏率。在含有 RAP 的 FAM 混合物中添加再生剂并不会显着降低刚度。再生剂的加入可以提高抗损伤性并延长 FAM 与 RAP 的混合物的疲劳寿命；然而，