If your pavement has little or no obvious base failure, or if you’ve repaired your structural problems and are looking for a way to prolong the life of your pavement, an asphalt overlay can be a cost effective repair.
The area should be thoroughly cleaned and any visible vegetation treated and removed.
A tack coat should be applied, with a distributor truck at a rate of .05-.10 gallons per square yard. A surface course of ODOT #448 asphalt is then installed at the specified thickness, usually a minimum of 1 1/2″. It is recommended that where the new overlay meets an adjacent surface or a sewer structure, the surrounding area is either milled or a butt joint is created.
This will avoid any uneven areas that could cause a tripping spot for pedestrians or that could be damaged by a snowplow. As with all of the other repair methods, the edges should be tacked.