It is announce from Building and Construction College in Yangzhou University that Prof. XiaoPeng, the leader of the technology team, has developed the high-grade asphalt using abandoned materials, which can successfully prevent softening, deforming and cracking. It fills up the blank of this area.

According to the introduction of the experts, the normal asphalt can be softened at high temperature in summer season. Therefore, it is easy to form rutting which will result in the decrease of the amenity and safety when driving. While at low temperature in winter, the asphalt can be easily hardened which resulted in the cracking in the pavements. The preparing process of environmental friendly asphalt is as follows: grinding the used tyers to rubber powder, and adding them to conventional asphalt, and then preparing through high speed cutting and mixing under high-temperature and high-pressure in special mixing machine. It is known that, one of the raw material of the modified asphalt is used tyres, which not only can effectively solve the problem of disposing waste & old tyres, but also effectively reduce environment pollution caused by used tyres.