Zhengzhou-Kaifeng City Expressway Renovation

　　Our reporter learned from the "Citizens See City Management" activity held by Municipal Administration of Zhengzhou-Kaifeng City Expressway Municipal Administration of Public Works that Zhengzhou-Kaifeng City Expressway is under heavy repair. On this occasion, new materials called SMA surface layer will be adopted on the pavement. Once finished, it will bring the public high-quality driving experience .

　　Last morning, at the test section of Zhengzhou-Kaifeng City Expressway, more than 20 teachers and students from Henan Agricultural University participated in the activities and viewed the roads freshly paved. According to the reports, basalt is used as the main coarse aggregate, with advantages as high temperature resistance, crush resistance, water damage, non-slip noise reduction, etc. What’s more, unfriendly experience like prone of deformation, cracking and other disadvantages is less. The service life has been greatly improved.