What is the required compaction percentage within 0.6 m of the bottom elevation for reconstruction?

The required compaction percentage within 0.6 m of the bottom elevation for reconstruction being 95% of the maximum density is critical to ensure the stability and durability of the constructed surface. Achieving this level of compaction is essential for several reasons.

Firstly, higher compaction levels, such as 95% of maximum density, help to minimize air voids in the asphalt layer. This reduction in air voids contributes to increased strength and durability of the pavement, reducing the likelihood of deformation and failure under load over time.

Secondly, proper compaction is crucial for achieving effective bonding between the asphalt layers, which is essential to prevent delamination and ensure the structural integrity of the entire pavement system. This is particularly significant in layers that are close to the bottom elevation, where the load transfer is critical.

Finally, adhering to specified compaction requirements like 95% of maximum density helps to meet industry standards and regulatory requirements, which often dictate minimum compaction levels for various applications. Meeting these requirements minimizes the risk of future maintenance and can extend the lifespan of the pavement.

In summary, the necessity of achieving 95% of the maximum density ensures that the pavement structure is sound, durable, and capable of withstanding the stresses it will encounter throughout its