Analysis of causes of cracks in municipal asphalt pavements and discussion on preventive maintenance measures
市政道路沥青路面裂缝成因及预防性养护措施探讨

摘要

沥青路面裂缝是影响市政道路性能的重要病害，主要由材料老化、施工缺陷及外部荷载等因素引起。当前养护工作普遍存在被动维修、技术适应性差、施工质量不高等问题，制约了养护效果。预防性养护通过微表处、雾封层、灌缝等技术手段，在裂缝初期进行主动干预，可显著延缓结构破坏进程。结合多路段实践分析，养护后需建立长期监测机制，优化材料选择与施工工艺。研究表明，构建标准化、数据化的养护管理体系是未来发展的关键方向。

Abstract

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.