According to ASTM requirements, what is the required compaction for cohesive soils in asphalt paving?

The requirement for cohesive soils in asphalt paving indicates that a minimum compaction level of not less than 95% of maximum Modified Proctor density is necessary to ensure proper strength, stability, and durability of the asphalt layer. Achieving this level of compaction helps optimize the soil's mechanical properties, reducing the risk of settlement, deformation, or structural failure in the pavement. The Modified Proctor test provides a higher compaction effort than the standard Proctor test, making it more suited for heavier and cohesive soils typically found in asphalt applications. This ensures that the pavement can withstand both traffic loads and environmental conditions effectively, leading to better performance over its lifespan. Choosing the correct compaction standard is critical in asphalt paving practices to meet safety and quality specifications.