Question

A flexible pavement has four different layers, what is the purpose of each of these layers. Using a simple sketch, show these layers.

Answer 1

Answer:

Base courses are usually constructed out of crushed aggregate or HMA. Subbase Course. The layer between the base course and subgrade. It functions primarily as structural support but it can also minimize the intrusion of fines from the subgrade into the pavement structure and improve drainage.

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