What thickness of aggregate base is specified for the concrete sidewalk leading to Wendy's Restaurant?

The specification of a 4-inch thickness for the aggregate base for a concrete sidewalk is based on several important factors concerning structural integrity, load-bearing capacity, and durability. A 4-inch base is generally considered sufficient to support pedestrian traffic while providing a stable foundation for the concrete itself. This thickness also allows for proper drainage and minimizes the risk of cracking or settling over time.

An aggregate base of this thickness will adequately distribute loads over a larger area and help to prevent potential surface issues that could arise from a thinner base. This ensures that the sidewalk remains functional and aesthetically pleasing for an extended period.

Thicker bases, while potentially beneficial in certain scenarios, are often unnecessary for standard pedestrian walkways unless specific conditions or heavy loads dictate otherwise. Therefore, a 4-inch aggregate base strikes a balance between practicality and adequacy for everyday use, making it the standard choice for such applications.