Abstract:

the relevance of the study stems from the need to enhance the durability of asphalt concrete pavements, where aging processes of petroleum road bitumens and asphalt binders significantly impact performance. The article aims to summarize theoretical knowledge on thermo-oxidative aging of bitumens, including changes in physicochemical properties, rheological behavior, group composition, and the influence of external factors such as bitumen film thickness and interaction with mineral materials. The leading approach is the systematization of scientific literature data. The review results indicate that aging increases asphaltenes, reduces oil fractions, impairs elasticity, and raises activation energy. Conclusions emphasize the importance of optimizing bitumen mixture compositions and technological processes to minimize aging.

Keywords: petroleum road bitumen, thermo-oxidative aging, rheological properties, asphalt binders, activation energy