Although the cold recycling technology can make full use of the old asphalt layer, but basically, this kind of utilization is simply used, and does not make full use of the old asphalt materials. Therefore, the modification of foam asphalt and the performance of the mixture will make the recycled recycled asphalt mixture as the standard of the wear layer, which is the direction of future efforts.
Generally speaking, from the point of view of energy saving and transportation cost, it is suitable for recycling and recycling of asphalt pavement by using foamed asphalt for cold recycling at the scene.
As an innovative and practical technology, cold recycling of asphalt pavement has greatly changed the traditional maintenance method of asphalt pavement used for many years in China. The cold recycling technology of asphalt pavement can save a lot of raw materials such as asphalt, sand and stone, and is conducive to the treatment of waste and environmental protection.
Due to the requirements of economy and environmental protection, it is in line with the requirements of sustainable development to use the existing pavement materials for highway maintenance and reconstruction as much as possible. With the increase of asphalt pavement maintenance in China, the use of cold recycling technology is of great value.