Long-term cracking performance of asphalt mixtures is heavily influenced by asphalt binder rheology, and changes in binder stiffness, ductility, and aging condition significantly affect the cracking resistance of the corresponding asphalt mixture. This study evaluated the effectiveness of several common and recently developed binder rheological indices in capturing the effects of binder performance grade (PG) and source, recycled binder content, recycling agent (rejuvenator) dose, and long-term aging. These binder rheological indices included the Superpave intermediate-temperature PG (PGI), the Glover-Rowe (G-R) parameter, the crossover temperature (T_δ=45°), the rheological index (R-value), and ΔT_c. This study also directly compared the binder rheological indices with the cracking performance of corresponding asphalt mixtures to explore possible correlations and their robustness. Asphalt mixture cracking performance was evaluated using the Illinois Flexibility Index Test (I-FIT) for intermediate-temperature cracking, and the disk-shaped compact tension (DCT) test and the uniaxial thermal stress and strain test (UTSST) for low-temperature cracking.

Results indicated that all the binder rheological indices (except PGI) consistently captured the effects of binder blend composition and proportions and aging condition, with a few exceptions. Results also showed that the G-R parameter, the crossover temperature (T_δ=45°), and ΔT_c had the best correlation to asphalt mixture and field core cracking performance as compared with other rheological indices (PGI and R-value), with ΔT_c demonstrating the overall best correlation to mixture cracking performance.

沥青混合料的流变学特性严重影响沥青混合料的长期抗裂性能，而结合料刚度，延展性和时效条件的变化会显着影响相应沥青混合料的抗裂性。这项研究评估了几种常见的和最近开发的粘合剂流变学指标在捕获粘合剂性能等级（PG）和来源，再生粘合剂含量，再生剂（再生剂）剂量和长期老化的影响方面的有效性。这些粘合剂的流变学指数包括在Superpave的中间温度PG（PGI），所述格洛弗-罗维（GR）参数，交叉温度（T _δ = 45°），流变指数（R值），和ΔT _Ç。这项研究还直接将粘结剂的流变指数与相应的沥青混合物的裂化性能进行了比较，以探讨可能的相关性及其稳健性。使用伊利诺伊州中温裂纹挠性指数测试（I-FIT），低温裂纹的圆盘形致密张力测试（DCT）和单轴热应力和应变测试（UTSST）评估沥青混合料的开裂性能。

结果表明，除少数例外，所有的粘合剂流变指数（除PGI以外）均能始终如一地反映出粘合剂混合物的组成，比例和老化条件的影响。结果还表明，GR参数，交叉温度（T _δ = 45°），和ΔT _Ç有作为与其它流变指数（PGI和R值）进行比较，以沥青混合物和励磁铁心开裂性能最好的相关性，与ΔT _c证明与混合物裂化性能的总体最佳相关性。