In response to the large demand for polymer materials and natural stone in highway construction, and combined with the environmental and social problems caused by the inability to effectively utilize solid waste, this project systematically carried out the following research: 1. High-performance asphalt composite modification based on polymer waste materials Research on technology;2. Research on natural stone substitution technology based on inorganic non-metallic waste materials.

 The results achieved by this project have been promoted and applied in some expressways in Shandong Province. The research results can improve the quality of expressway operation and services, extend the service life of pavement structures, and reduce pavement maintenance costs; at the same time, it provides a new way to eliminate bulk solid waste materials and effectively solves environmental pressure.

 (This achievement was released by the Qingdao Joint Office of Technology Transfer of Universities and Institutions)