Research on Preparation and High Temperature Behavior of High-modulus Asphalt

An unanticipated side effect of China's developing economy was the increase in heavy road traffic vehicles utilizing high pressure tires on both new and old infrastructure. Today the extent of rutting has become one of the main forms of asphalt road surface breakage. To improve the robustness and high temperature properties of road surfacing asphalt, a new high-modulus material has been developed and used to modify normal road petroleum asphalt. The results from laboratory experiments conducted at the Jiangsu Baoli Asphalt Co., LTD and real road trials in People's Democratic Republic of Algeria, Shanghai, Shanxi and Jiangsu province in China, indicate that the high-modulus asphalt performed significantly better at higher-temperatures when compared to samples of more commonly used asphalt mixtures. The high-modulus additive (No. ZQ-1) was prepared in Jiangsu Baoli Asphalt Co. LTD, and the basic production process, the basic properties as well as the effection to base bitumen was analysed in the paper. And the Dynamic Stability was evaluated using an automated rut-depth measuring system. The water stability and low temperature properties were also discussed. The modified asphalt material has comparable storage and usage costs to existing utilized asphalts though with enhanced high-temperature properties.