What is the maximum thickness for laying BASE asphalt?

The correct answer indicates that the maximum thickness for laying BASE asphalt is more than 3 inches. This aligns with industry standards and best practices regarding the application of base asphalt.

When developing a pavement structure, the base layer is crucial for providing strength and stability. Typically, base asphalt layers are designed to be thicker than 3 inches to accommodate load-bearing requirements and to provide adequate support for the subsequent layers of the pavement. A thicker base layer can help enhance the performance and lifespan of the pavement by distributing loads more effectively and minimizing the potential for deformation under traffic.

While there may be project-specific guidelines or specifications that suggest limitations on thickness, the general understanding within asphalt paving practices is that a base layer exceeding 3 inches is necessary for achieving the required structural integrity and performance of the roadway.