The increase in the amount of reclaimed asphalt pavement (RAP) and environmental concerns for bitumen production have contributed to the use of RAP in road construction and maintenance. The use of higher than 15% of RAP adversely affects the physical and rheological properties of the asphalt binder and the mechanical properties of mixtures. Therefore, the use of bitumen and asphalt mixture improver were necessary to reduce the negative effects generated with the use of RAP. This paper aims to study the effect of fiberglass (FG) (0.5%, 1.0%, 1.5%, and 2%) on the mechanical properties of asphalt concrete containing 25%, 50% RAP and 9% waste engine oil. The performance of RAP asphalt mixtures incorporated with FG was evaluated using the Marshall stability test, moisture susceptibility test, and immersion wheel rutting test. The results indicated that the use of FG and RAP materials to rejuvenated asphalt mixtures resulted in an increase in the values of Marshall stability and rutting resistance. Moreover, the study revealed that increasing the content of RAP material and FG results in increased resistance of asphalt to moisture damage. This paper concluded that using 0.15% of FG and 50% RAP materials gives the best results.

再生沥青路面 (RAP) 数量的增加和沥青生产的环境问题促使 RAP 在道路建设和维护中的使用。使用高于 15% 的 RAP 会对沥青结合料的物理和流变性能以及混合物的机械性能产生不利影响。因此，必须使用沥青和沥青混合料改进剂以减少使用 RAP 产生的负面影响。本文旨在研究玻璃纤维（FG）（0.5%、1.0%、1.5%和2%）对含有25%、50% RAP和9%废机油的沥青混凝土力学性能的影响。掺有 FG 的 RAP 沥青混合料的性能通过马歇尔稳定性试验、湿气敏感性试验和浸入式车轮车辙试验进行评估。结果表明，将 FG 和 RAP 材料用于再生沥青混合物导致马歇尔稳定性和抗车辙性值的增加。此外，研究表明，增加 RAP 材料和 FG 的含量会增加沥青对水分破坏的抵抗力。本文得出的结论是，使用 0.15% 的 FG 和 50% 的 RAP 材料可获得最佳结果。