When it comes to your asphalt driveway or parking lot, cracks are a common concern. However, not all asphalt cracks are the same. Each type of crack has a unique cause, and understanding these differences is crucial for choosing the right repair method. Different climate conditions, weather patterns, and even the materials used in the original paving can all contribute to the appearance of cracks. Identifying the type of crack helps asphalt professionals determine the best approach to maintenance, ensuring that your pavement lasts longer and stays in better condition.
1. Edge Cracking
Edge cracks appear along the perimeter of the asphalt, often near the edges. These cracks are typically caused by settling subgrade material, drying soil, or a lack of lateral support. Tree roots and nearby vegetation can also contribute, as they grow under the surface and push the asphalt upward. To repair edge cracks, professionals will remove the damaged asphalt until they reach a solid foundation, then resurface the area.
2. Slippage Cracking
Slippage cracks are crescent-shaped and often appear when materials like dirt or water infiltrate between the layers of asphalt, weakening the bond. Poor-quality asphalt or improper mixing can also contribute to this issue. To repair slippage cracks, the cracked area must be broken out and filled with a cold patch.
3. Reflection Cracking
Reflection cracks occur when new asphalt is applied over old, cracked pavement. Just as cracks in old paint will reappear through a new coat, the broken asphalt underneath causes the new layer to crack as well. Reflection cracking is a result of inadequate paving techniques and can be resolved by addressing the underlying pavement before applying new asphalt.
4. Transverse Cracking
Transverse cracks run perpendicular to the centerline of the pavement and are often caused by thermal cracking in low temperatures or a mix that’s too hard for the climate. These cracks are typically due to shrinkage of the asphalt layers but may be aggravated by heavy traffic. Repairing transverse cracks often involves applying sealant or replacing the cracked areas with a fresh overlay.
5. Fatigue Cracking
Fatigue cracking, also known as alligator cracking, is characterized by multiple small, clustered cracks that resemble the pattern of an alligator’s skin. This type of cracking occurs due to constant heavy loads on the pavement, especially when the underlying layers are too thin to support the weight. The solution is to break out the cracked area and repave it with a stronger, thicker layer of asphalt.
Repairing Asphalt Cracks with Asphalt Sealcoating Supply Inc.
If you notice any type of asphalt cracking on your driveway or parking lot, timely repair is essential to avoid further damage. Asphalt Sealcoating Supply Inc. offers top-quality materials for crack filling, asphalt sealcoating, and general pavement maintenance. Whether you need to repair edge cracks, slippage cracks, or any other asphalt damage, our products will help restore and protect your surfaces. For expert advice and the best products for asphalt maintenance, contact us at 304-916-6117.