Paving & Overlays

Paving on Grade

When paving on grade, new asphalt is placed on finished subgrade or aggregate base material. Tack coat is required only on adjoining surfaces and not over the entire area.  The new asphalt is laid down using the same process as the overlay below.

Asphalt Overlays

An asphalt overlay is simply the process of installing a new surface layer of hot mix asphalt directly over existing asphalt on either parking lots or roads. In order to be a candidate for an overlay, a pavement should be relatively sound without large areas of base failure. Prior to resurfacing, pavement repairs and transitions must be made. Cracks should be filled with rubberized crack sealer, and a tack coat applied over the entire surface. A new layer of asphalt is then placed.

An asphalt overlay is the least costly of the reconstruction techniques, but it has definite drawbacks. These include a limited service life, elevation considerations, inability to make drainage corrections, and a tendency to show reflective cracking in a relatively short period of time.

Fabric Overlay

Fabric overlay is a way to delay reflective cracking, although it will not prevent such cracking. Prior to placing a new layer of hot mix asphalt, a geo-textile fabric is embedded in liquid asphalt binder over the entire surface. The fabric/binder combination forms a membrane that helps keep water out of the base. The cost is approximately one-third greater than a basic overlay.

Ready to Pave?

A quality paving project begins with a solid, experienced contractor. Sunland Asphalt uses state-of-the-art equipment, technology, as well as seasoned crews to ensure your pavement is installed properly.  Contact our Paving & Overlay experts today for a free estimate.

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