To compared test results of CALTEX AH-70,SBS and MAC modified asphalt respectively have been find the best asphalt adapting to this structure.

• 对沥青大碎石柔性基层用加德士AH-70、SBS改性沥青和MAC改性沥青分别进行试验,通过试验结果和经济性能对比分析,找到适合此结构的最佳沥青。