Synchronous chip seal road maintenance work is the use of synchronous pavement surface will be gravel and special vehicle binder (hot asphalt, asphalt or emulsified asphalt) synchronous spill spread on the road, through a normal driving or tire roller compacted to form a monolayer or multilayer asphalt pavement surface. Because synchronous chip seal a lasting waterproof, high slip resistance and a good economy, the aggregate loss in the absence of circumstances, extend the pavement life of 7 to 10 years. It is mainly used for the surface layer of pavement road subbase and various grades of preventive maintenance and corrective maintenance, as well as the old bridge deck waterproofing and pavement to pavement concrete panel construction bitumen waterproof adhesive layer. Synchronous pavement surface vehicles chosen vehicle chassis or special chassis-based car, the slurry seal machine and stone chips spreaders working devices rolled into one, and the use of electronic technology for automatic control of its operation parameters. Synchronous chip seal special vehicle prominent advantages are: reliable adhesion of asphalt and gravel, stone chips not only reduce the loss, but also improve the pavement skid resistance and abrasion resistance; so easy to penetrate the asphalt pavement cracks, which can effectively ground water and prevent freeze-thaw damage; short construction period; high productivity and operating efficiency, saving time and labor and material, significantly reducing the cost of road maintenance. Source: www.hncdly.com/news/11.html [zhongqi]