Which option combines elements of both asphalt and concrete?

• A. Asphalt pavement
• B. Bridge pavement
• C. Concrete pavement
• D. Composite materials

Answer: (D)

Composite materials are formed by combining two or more distinct materials to achieve properties that neither would on its own. When you think about blending elements of asphalt and concrete, you’re looking at a system that uses the strengths of both within one structure. This is exactly what a composite material means—the combination of different constituents to create a new, integrated material behavior. The best answer reflects that idea because it explicitly denotes a mixture of different materials. The other choices describe pavements made from a single material (asphalt or concrete) or a pavement type that could be either material on a bridge but doesn’t inherently combine them into one material.