Research on Mixing and Compaction Property of Warm Mix Asphalt

Warm mix asphalt is a new kind of material with energy-saving and environmental protection performance.It can be mixed and compacted at a lower temperature.Penetration,softening point,ductility and viscosity tests of modified asphalt are done in this paper,and the impacts of viscosity on mixing and compaction property are discussed.The mixing and compaction temperature and mixing technology are also researched.The results show that modifier improved high temperature stability of modified asphalt and its mixture but decreased low-temperature stability.The paper put forward reasonable mixing and compaction temperature,construction technology and provided the test basis for the quality of mixture and its application in actual projects.