Journal of Engineering Research

Cracks in the asphalt pavements of municipal roads are common problems in the maintenance of urban transportation facilities. They not only affect the aesthetics of the roads but also pose a threat to driving safety. This paper mainly explores the causes of cracks in the asphalt pavements of municipal roads and the optimization paths of repair technologies. Firstly, it analyzes the impacts of factors such as temperature changes, load pressures, and material aging on cracks in asphalt pavements, pointing out that the formation of cracks is a complex physico - chemical process. Then, it introduces several current mainstream repair technologies, including hot - patching method, cold - patching method, and the application of new materials, and puts forward improvement suggestions in view of the shortcomings of these methods. By optimizing the construction process and selecting high - performance materials, the repair effect can be effectively improved, and the service life of the road can be extended. This research provides theoretical support and technical guidance for the maintenance of asphalt pavements of municipal roads.

Asphalt Pavement; Causes of Cracks; Repair Technology; Material Aging; Temperature Change