5 Common Age-Related Damage On Asphalt Driveways

An asphalt driveway can have a long working life, but eventually weathering and aging will begin to result in damage. Identifying the damage early may allow you to make repairs instead of fully replacing the paving. 

1. Surface Gravel

Loose surface gravel is a result of the asphalt binder drying out and releasing the aggregate contained in the paving. This problem is called raveling, and it's a result of UV and heat damage that dries out the asphalt. Applying sealcoating every couple of years can prevent raveling. If raveling is already a problem, then the asphalt may need to be resurfaced.

2. Pothole Formation

Potholes are more of a problem on older driveways where the surface has developed divots and surface imperfections due to weathering. Moisture seeps into these depressions, where it may freeze and expand. This thermal expansion breaks apart the asphalt, thus resulting in the formation of the pothole. Much like raveling, regular sealcoating can also prevent pothole formation. Existing potholes must be cleaned out and patched with a hot asphalt mix.

3. Fatigue Cracks

Also known as alligator cracks, fatigue cracks create a network of cracks that resemble alligator skin. These cracks are a result of the base weakening, often in response to heavy vehicles parking and driving on the asphalt over the years. A too-thin layer of asphalt can make the problem more likely. Applying crack fillers and then sealcoating can provide a temporary fix, but replacement of the driveway will eventually be necessary.

4. Edge Collapse

A common problem on older driveways is a collapsing edge. The cause is erosion of the base materials where the driveway abuts the lawn. Poor water drainage around the paving can make the problem more likely, as can parking vehicles and driving right along the edge of the drive. Minor cracks can be filled with a sealer, while major cracks may require cutting out the damage so the base can be repaired before new asphalt is laid.

5. Low Spots

Low spots and depressions occur when the base material begins to weaken. This can be due to shifting soil beneath the pavement, or a result of erosion from poor drainage. Eventually, depressions can begin to crumble and become potholes. If caught early, patching may help prolong the life of the asphalt. Eventually the asphalt and base material will need replacement, though. 

Contact a paving repair service if you notice any age-related damage on your asphalt driveway. 

For more info about residential paving, contact a local company.