The performance properties of asphalt binders and mixtures can be enhanced utilizing several modifiers, including; Poly Phosphoric Acid (PPA), Warm Mix Asphalt (WMA) modifiers, and Styrene–Butadiene Rubber (SBR). The current study evaluated the effect of PPA and WMA contents on rheological behavior of SBR modified binders and SMA mixtures. The modified binders were subjected to rotational viscosity, Dynamic Shear Rheometer, and Bending Beam Rheometer, Multiple Stress Creep Recovery (MSCR), and Linear Amplitude Sweep (LAS) tests. The SBR/PPA and SBR/PPA/WMA modified mixtures were subjected to Indirect tensile strength (ITS), dynamic creep, resilient modulus (M_r), wheel track, and four-point beam fatigue (FPB) tests. To analyze the data, two-factor analysis of variance (ANOVA) was investigated. Based on the results of the MSCR test at both stress levels, modification of base bitumen by SBR, PPA and WMA additives causes an enhance in permanent deformation performance of original bitumen. LAS test results indicated that, utilization of SBR and WMA additives improves the fatigue life of bitumen. Also, by addition of PPA, the fatigue life of SBR modified binders increases. whereas, the fatigue lives are higher than original binders ones. Based on results, utilization of SBR and PPA enhances the M_r, rutting properties, ITS, FE, and fatigue behavior of specimens. By increasing the PPA percentage, the rutting and fatigue behavior enhances. Whereas, it causes a decreases in M_r and ITS of modified mixtures. Among warm additives, sasobit has better effect on enhancing the performance of binders and mixtures.

可以使用几种改性剂来增强沥青粘合剂和混合物的性能，包括：聚磷酸（PPA），热拌沥青（WMA）改性剂和苯乙烯-丁二烯橡胶（SBR）。当前的研究评估了PPA和WMA含量对SBR改性粘合剂和SMA混合物的流变行为的影响。对改性的粘合剂进行旋转粘度，动态剪切流变仪和弯曲梁流变仪，多重应力蠕变回复率（MSCR）和线性振幅扫描（LAS）测试。对SBR / PPA和SBR / PPA / WMA改性混合物进行间接拉伸强度（ITS），动态蠕变，弹性模量（M _r），轮迹和四点梁疲劳（FPB）测试。为了分析数据，对两因素方差分析（ANOVA）进行了研究。根据在两个应力水平下的MSCR测试结果，通过SBR，PPA和WMA添加剂对基础沥青进行改性会增强原始沥青的永久变形性能。LAS测试结果表明，使用SBR和WMA添加剂可改善沥青的疲劳寿命。另外，通过添加PPA，SBR改性的粘合剂的疲劳寿命增加。而疲劳寿命比原始粘合剂更长。根据结果​​，利用SBR和PPA可以提高M _r，车辙性能，ITS，FE和试样的疲劳行为。通过增加PPA百分比，可以改善车辙和疲劳行为。然而，它会导致在降低中号_[R和改性混合物的ITS。在温暖的添加剂中，sasobit对增强粘合剂和混合物的性能具有更好的作用。