Technical Research Based on Maintenance and Repair Construction of Expressway Asphalt Pavement

China's highway construction has entered a new historical period represented by highways since the 1980s.After years of exploration and practice, China's highway asphalt pavement construction technology has gradually matured. With the rapid growth of the national economy, highways Significant changes in traffic conditions, such as increased traffic volume and increased number of heavy-duty trucks, etc. At this time, some asphalt pavement will inevitably be damaged, which will ultimately affect people's lives and travel, and more importantly, it will affect economic development. Cause certain obstacles. Under this background, the new traffic conditions have put forward higher requirements for the quality management of highway asphalt pavement. In the process of asphalt pavement maintenance and repair, how to effectively maintain and repair the asphalt pavement of the highway with effective technology requires the relevant personnel to attach great importance to.