Abstract Asphalt binders play an integral role in the performance and properties of asphalt mixtures. Increased traffic-related factors on the roadways such as heavier loads, higher traffic volume, and higher tire pressure combined with substantial variation in daily and seasonal temperatures of the pavement have been responsible for the asphalt pavements failure. To prevent or mitigate these failures, many attempts have been made by polymer scientists and civil engineers to improve the performance of asphalt pavements by modifying the properties of asphalt binders. A good modifier changes the failure properties such that binder yields more stresses and strains before failure. Modification of asphalt binders through the addition of a polymer to improve their rheological and physical properties has a long history in asphalt industry. Once the polymer is properly mixed with the asphalt binder, a swallowed polymer network is formed, which contributes to the changes in viscoelastic behavior. However, polymer-modified asphalt binders may have some drawbacks related to the poor solubility of polymers. Understanding the internal structure of polymer-modified asphalt binders has been the subject of numerous research studies. Available studies regarding the affecting parameters on the properties of the polymer-modified asphalt binders are reviewed here. Various types of polymers used in asphalt industry and their effects on the rheological, morphological, physical and mechanical properties of polymer-modified asphalt binders are also discussed in this paper. In addition, this paper provides a review on the techniques used to overcome/mitigate the shortcomings of conventional polymer-modified asphalt binders.

中文翻译：

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聚合物改性沥青粘合剂的形貌、流变学和物理性质

摘要 沥青结合料对沥青混合料的性能和性能起着不可或缺的作用。道路上与交通相关的因素增加，例如更重的负载、更高的交通量和更高的轮胎压力，再加上路面的日常和季节性温度的显着变化，是造成沥青路面失效的原因。为了防止或减轻这些故障，聚合物科学家和土木工程师进行了许多尝试，通过改变沥青结合料的性能来提高沥青路面的性能。一个好的改性剂会改变失效特性，从而使粘合剂在失效前产生更多的应力和应变。通过添加聚合物来改进沥青结合料以改善其流变和物理性能在沥青工业中有着悠久的历史。一旦聚合物与沥青粘合剂适当混合，就会形成吞咽聚合物网络，这有助于粘弹性行为的变化。然而，聚合物改性沥青粘合剂可能存在一些与聚合物溶解性差有关的缺点。了解聚合物改性沥青结合料的内部结构已成为众多研究的主题。本文综述了有关影响聚合物改性沥青粘合剂性能参数的现有研究。本文还讨论了沥青工业中使用的各种聚合物及其对聚合物改性沥青结合料流变学、形态学、物理和机械性能的影响。此外，