Advances in Constructional Engineering

Cracks in asphalt pavements are a major distress that significantly affects the performance of municipal roads, primarily caused by factors such as material aging, construction deficiencies, and external loads. Current maintenance practices are often characterized by reactive repairs, poor technical adaptability, and suboptimal construction quality, which limit the effectiveness of maintenance efforts. Preventive maintenance, through techniques such as micro-surfacing, fog sealing, and crack sealing, enables proactive intervention at the early stages of cracking and can notably delay structural deterioration. Based on analysis of multiple road sections, long-term monitoring mechanisms should be established after maintenance to optimize material selection and construction processes. Research indicates that building a standardized and data-driven maintenance management system is a key direction for future development.

Asphalt pavement; Crack causes; Preventive maintenance; Municipal road; Pavement durability