Semi-flexible composite pavement structure
By adopting a semi-flexible composite pavement structure in the road pavement, including filling cement in the asphalt mixture layer and installing rubber asphalt gravel seals and skeletons, the problem of poor rut resistance to existing pavement is solved, significantly improving the deformation resistance and service life of the pavement, and reducing maintenance costs.
Patent Information
- Application Number
- CN202421844153.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The existing road surface has poor rut resistance and is prone to local cracking and collapse, which affects the comfort and safety of the vehicle. Especially when the truck stays at the intersection for a long time, it is more likely to collapse.
A semi-flexible composite pavement structure is adopted, including the base layer, asphalt adhesive oil and asphalt mixture layer. The asphalt mixture layer is filled with cement, with a total void ratio of 19%-28%, and a connecting void ratio of 17%-26%. A rubber asphalt gravel seal is set when there are cracks on the base layer. The skeleton includes the main body and the connecting part, and the main body is arranged in a mesh structure in the asphalt mixture layer.
It significantly improves the rut resistance of the road surface, reduces the deformation and formation of ruts, enhances the resistance to deformation, extends the service life of the road surface, and reduces the frequency and cost of maintenance and repair.