This study evaluated the performance characteristics of binders and Stone Matrix Asphalt (SMA) Mixtures modified by Poly Phosphoric Acid (PPA), Carbon Nano Tube (CNT), and Styrene Butadiene Rubber (SBR). In order to investigate the rheological behavior of bitumens, linear Amplitude Sweep (LAS), rotational viscosity, Dynamic Shear Rheometer, Bending Beam Rheometer, Multiple Stress Creep Recovery (MSCR), and storage stability tests were implemented. Moreover, Resilient modulus (Mr), Indirect tensile strength (ITS), dynamic creep, wheel track, and Four-Point Beam Fatigue (FPBF) tests were performed to investigate the properties of asphalt mixtures. LAS and MSCR tests result revealed that the addition of SBR/PPA and CNT leads to improved fatigue life and rutting properties of binders at both strain levels. Additionally it was found that modification of SBR/PPA with 85–100 binder enhances the intermediate temperature behavior of bitumens. The results indicate that the addition of SBR/PPA enhances the Mr, rutting properties, ITS, fracture energy, and fatigue performance of specimens. By increasing the CNT contents, the rutting behavior improves.

这项研究评估了由聚磷酸（PPA），碳纳米管（CNT）和苯乙烯丁二烯橡胶（SBR）改性的粘合剂和石基沥青（SMA）混合物的性能特征。为了研究沥青的流变行为，进行了线性振幅扫描（LAS），旋转粘度，动态剪切流变仪，弯曲梁流变仪，多重应力蠕变恢复率（MSCR）和存储稳定性测试。此外，还进行了弹性模量（Mr），间接拉伸强度（ITS），动态蠕变，轮距和四点梁疲劳（FPBF）测试，以研究沥青混合料的性能。LAS和MSCR测试结果表明，在两种应变水平下，添加SBR / PPA和CNT都可以改善粘合剂的疲劳寿命和车辙性能。此外，还发现用85-100的粘结剂改性SBR / PPA可以增强沥青的中间温度行为。结果表明，添加SBR / PPA可以增强样品的Mr，车辙性能，ITS，断裂能和疲劳性能。通过增加CNT含量，改善了车辙行为。