Composite Surfaces
Composite surfaces combine Portland cement concrete and asphalt. They are usually used to rehabilitate existing roadways rather than in new construction.
Asphalt overlays are sometimes laid over distressed concrete to restore a smooth wearing surface. A disadvantage of this method is that movement in the joints between the underlying concrete slabs, whether from thermal expansion and contraction, or from deflection of the concrete slabs from truck axle loads, usually cause cracks, called reflective cracks in the asphalt.
Whitetopping uses Portland cement concrete to resurface a distressed asphalt road.
Read more about this topic: Road Surface
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