Study on the Performance of Medium Temperature Warm Mixed Asphalt
The preparation process and performance of medium temperature warm mixed asphalt were studied.The effects of preparation temperature,shear time and medium temperature regeneration agent content on the performance of medium temperature warm mixed asphalt were studied through experiments.The results show that(1)the preparation process of medium temperature warm mixed asphalt is as follows:the temperature of 70#asphalt is 120℃,the temperature of medium temperature regeneration agent is 80℃and the shear time of the regeneration agent is 90min;(2)the addiction of medium temperature regeneration agent improves the low temperature ductility of asphalt,reduces the viscosity of asphalt and improves the construction work-ability;(3)the penetration of aged asphalt increases with the increase of the amount of medium temperature regeneration agent,the softening point decreases with the increase of the amount of medium temperature regeneration agent and the optimum content of medium temperature regeneration agent is 4%for the 70#asphalt.
medium temperature warm mixingmedium temperature regeneration agentpreparation processasphalt performance
万方数据
维普
