Design and Road Performance Study of Ultra-thin Surface Asphalt Mixture
The roughness and skid resistance indexes of the original cement concrete pavement of Wucan Expressway decreased obviously,and the roughness indexes and skid resistance indexes of some tunnels were evaluated as poor.Taking the road improvement renovation project of Wucan high-speed project as an example,the main scheme of the road improvement renovation project of Wucan high-speed project adopts 2.5 cm fine milling of cement surface layer,filling and bonding of structural joints and broken plates,spraying of highly viscous modified emulsi-fied asphalt adhesive layer,and adding 2.5 cm thick modified thin layer covering treatment.The thin layer covering enhances the surface func-tion of the original pavement,has obvious noise reduction effect,and basically solves the road surface diseases.