Crack seal

is an application of sealing material directly in the cracks of the pavement surface to prevent moisture damage.

Fog seal

is bitumen materials sprayed directly on the surface of the existing pavement. This treatment enriches the surface of the pavement edges and can prevent the loss of aggregates and seal coat.

Seal coat

is a spray application of binder immediately covered by a single layer of one-sized aggregates. Seal coat can be placed in either single or multiple layers.

Thin hot-mix

overlays

are similar to conventional overlays except the thickness is 2 inches or less. Generally, thin hot-mix overlays can correct irregularities that cannot be corrected with most other types of preventive maintenance.