Asphalt Overlay Over Concrete

A concrete pavement that moves will damage any asphalt overlay over time.

Asphalt overlay over concrete.

Unlike asphalt when a concrete surface begins to deteriorate there isn t an easy way to repave it without ripping up the surface entirely. The asphalt must be power washed to ensure a good bond between the concrete and asphalt layers. Applying an asphalt overlay to a concrete surface is a common practice. Overlays either structural or non structural make up a large portion of the roadway paving done today the degree of surface preparation for an overlay is dependent on the condition and type of the existing pavement.

During the winter that moisture freezes. Concrete paved surfaces are not compressed and compacted like asphalt is rather the concrete adheres and fills voids and irregularities with the soil and subgrade beneath it. Concrete expansion over time may cause reflective cracks. Before concrete installation begins the asphalt is inspected and repaired as needed.

It will however require a little more maintenance than a typical asphalt overlay. Price concrete and compare the costs and the advantages and disadvantages of each. An asphalt overlay is cheaper to install than replacing concrete and can provide a smooth ride over deteriorating concrete. The new surface may be too high and the cracks in the concrete will telegraph.

Asphalt resurface over asphalt. But consider an alternative concrete overlays. A 404 surface course of asphalt can be installed on top of existing asphalt. Blacktop over concrete is not a great idea.

The truth about asphalt over concrete. If you are looking to add asphalt over concrete you will need to make sure you have a stable concrete surface below with no expannsion joint shifting to make a proper base for overlay. In some cases it can be done over concrete pavement. Asphalt paving contractors frequently use asphalt over concrete on interstates state highways and city streets concrete provides an excellent base for the asphalt which must have a well compacted stable foundation to yield superior results.

Generally the existing pavement should be structurally sound level clean and capable of bonding to the overlay. Blacktop or asphalt installation over concrete can be very successful. Concrete asphalt overlay an asphalt overlay does not necessarily have to be applied to an existing asphalt surface. When concrete deteriorates it draws and holds moisture.

Holes or cracks with depth of 2 inches or more require filling before concrete overlay is applied.