The physicochemical behavior of polymer-modified binders suggests suitability for rejuvenating aged pavements and meets base bitumen parameters. The strengthening effect is mainly due to their electronic structures, which interact with asphaltene via CH-π interactions and crosslinkage reaction with S–H and O–H bonds of base bitumen, along with the virgin and waste polymers used. The functional groups in bitumen play a vital role in enhanced paving resistance after modification. This review aims to provide an overview of the current knowledge on the role of polymers in bitumen modification and to identify research gaps. It also discusses underutilized technologies, methods, and future research perspectives to implement more effective road networks for an environmentally sustainable development.

中文翻译：

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原生聚合物或废聚合物在沥青改性中的老化和再生研究进展

聚合物改性粘合剂的物理化学行为表明适合修复老化路面并满足基础沥青参数。增强效果主要是由于它们的电子结构，通过CH-π相互作用以及与基础沥青以及所使用的原始和废弃聚合物的S-H和O-H键的交联反应与沥青质相互作用。沥青中的官能团对于改性后增强摊铺阻力起着至关重要的作用。本综述旨在概述聚合物在沥青改性中的作用的当前知识，并找出研究差距。它还讨论了未充分利用的技术、方法和未来的研究前景，以实施更有效的道路网络以实现环境可持续发展。