What are the preventive measures for asphalt pavement?

October 25, 2022

Prevention measures for asphalt pavement:
1. Materials

Reasonable determination of the asphalt pavement structure, the cracks of the asphalt surface layer are mainly caused by the low temperature shrinkage of the asphalt surface layer itself. Select high-quality asphalt with low low temperature stiffness, large ductility, poor temperature sensitivity and low wax content, select ore materials, accurately grade the ore materials of the asphalt surface layer and reasonably configure the asphalt mixture ratio. To formulate an asphalt mixture with excellent performance, control the amount of asphalt, and ensure the excellent performance of the asphalt mixture can effectively reduce cracks.

R-C

2. Design
In the design of semi-rigid pavement, on the premise that the stability meets the requirements, the asphalt with greater penetration is preferred as the asphalt surface layer. The asphalt surface layer adopts dense asphalt concrete. The appropriate thickness of the asphalt surface layer is used to ensure that the semi-rigid base layer generally does not produce shrinkage cracks and thermal shrinkage cracks during service. Elaborately designed, do a good job in geological surveys in areas with complex terrain.
3. Maintenance
Strict maintenance management, strengthen road cleaning, ensure good drainage performance. The cracks should be scientifically treated in time to avoid the further expansion of the disease.

Prev : What are the uses and precautions of bitumen?

Next : What are the characteristics of asphalt pavement?