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Common Asphalt Damage and Solutions

Dec 29, 2022

Asphalt is popular for use in parking lots, driveways, and roads because of its durability and value for money. While asphalt has numerous positive features, it is not indestructible. Sometimes asphalt has problems. The major problem may be the sheer variety of damage the asphalt can sustain over time.



You can save a lot of time and money by recognizing problems early and fixing them right away. The following are the most common asphalt pavement problems and how to resolve them.


Longitudinal Cracks


Asphalt longitudinal cracks, also known as linear cracks, are long cracks running parallel to the pavement's centerline or slightly off-center in the direction of asphalt application. Linear cracks may result from various factors, including: 


  • Pavement fatigue 
  • Asphalt shrinkage
  • Wear and tear
  • Poorly constructed joints 


Longitudinal cracks are easily repaired by patching or sealing the area. Patching or sealing prevents water from seeping into the subgrade and causing additional damage. On the other hand, large cracks may require removing the asphalt and replacing it with an overlay.


Alligator Cracks


Alligator cracks, also known as fatigue cracks, get their name from the many small crack patterns that resemble alligator skin. Fatigue cracks form when the asphalt base weakens. The cracks may also suggest poor drainage or too little pavement thickness.


Since alligator cracks may result from structural flaws, repair requires complete patching. Patching will strengthen and restore the surface's integrity.


Raveling


Raveling occurs when aggregate particles separate from the asphalt surface. In addition to roughening the road surface, raveling reduces skid resistance, and the loose gravel poses a safety hazard to motorists.


Raveling can happen for many reasons, one of which is the incorrect mixing of asphalt aggregate.


As raveling primarily affects the surface of the asphalt, repair may require an overlay treatment to smooth and seal the road.


Edge Cracks


Edge cracks develop in close proximity to the asphalt's outer edge, parallel to the road. Several factors contribute to edge cracking, including inadequate drainage, poor edge support, and poor sub-base quality. Trees and shrubs nearby can also cause edge cracks when they grow close to the surface, lifting the asphalt.


To remedy edge cracks, you may need to remove all growth and debris, improve drainage, and apply crack sealant. Reconstructing the edge to solve support problems may also help with the cracking.


Potholes


Potholes are among the most common asphalt damage. Potholes are bowl-shaped holes in the asphalt layer that penetrate all the way through to the base. In addition to causing serious vehicle damage, potholes can pose a trip hazard to pedestrians.


Potholes occur when previous pavement damages, such as alligator cracks, worsen. The cracks allow water or dirt to enter the crack gaps, making them larger until pieces of asphalt become dislodged entirely as a result of weather conditions and vehicle loading.


The repair type depends on the pothole's size, depth, and severity. Patching with infrared energy, spray patching, or removing and repaving asphalt are some options.


Depressions


Asphalt depressions are areas with a lower elevation than the surrounding surfaces. The depressions do not penetrate the asphalt.


Depressions in asphalt may indicate weak spots or a faulty structural foundation. Poor construction or a system that supports too much weight might be to blame.


Repairing asphalt depressions requires removing the affected area and replacing the subgrade. A full-depth patch follows the subgrade repair.


Damage to asphalt is always possible. Consequently, proper maintenance is essential to prevent asphalt damage from forming and spreading. Early detection is the best prevention. For more information about asphalt pavement problems and how to fix them properly to prevent further damage, contact us at J& B Asphalt & Paving today.

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Asphalt paving is important in constructing and maintaining roads, driveways, and parking lots. It is a low-cost, long-lasting material that withstands heavy traffic and extreme weather conditions. But a few common mistakes can be made when paving with asphalt, leading to a weak surface that only lasts for a short time. Here are some of the most common blunders to avoid when paving with asphalt. Inadequate Base Preparation The asphalt surface will probably crack and get holes over time if it is not leveled or packed down well. The base must be excavated to a specific depth and width before the asphalt can be laid. The base material should mix crushed stone, gravel, and sand to provide a stable and long-lasting foundation for the asphalt. Then, this material should be leveled and pressed down with a roller to make a smooth, stable asphalt surface. Using the Incorrect Asphalt Mix The asphalt mix is made by mixing asphalt cement with a certain amount of aggregate, such as crushed stone, gravel, or sand. The ratio of aggregate to asphalt cement will change based on how the surface will be used and how much traffic it will get. When the wrong mix is used, the surface becomes weaker and more prone to cracking and damage. A mix that is too heavy on aggregate and too light on asphalt cement, for example, will not provide enough stability and will crack under heavy traffic. A mix that is too heavy on the asphalt cement and too light on the aggregate, on the other hand, will be more prone to rutting and deformation. Not Properly Compacting the Asphalt After laying the asphalt, it should be compacted with a roller. Compacting the asphalt removes air pockets and ensures a smooth and stable surface. Asphalt that has not been properly compacted is more prone to cracking and shifting. Compaction should be done in multiple passes, beginning with a light pass to remove any air pockets, followed by heavier passes to ensure a smooth and stable surface. The installer should move the roller slowly to ensure the asphalt is properly packed. Leaving the Asphalt Unsealed Sealing the asphalt will protect it from the elements and extend its life. A seal coat is a thin layer of asphalt that is poured over the asphalt. This liquid asphalt layer will shield the surface from water, oil, and UV rays. If the asphalt is not sealed, it is more likely to crack and be damaged by water, oil, and UV rays. The seal coat should be applied a few months after asphalt installation to let the asphalt fully cure. Not Using a Professional Asphalt Contractor Hiring a contractor who isn't qualified or doesn't have enough experience can lead to bad work, a weak surface that doesn't last long, and even expensive repairs or complete repaving. However, a professional contractor will know how to prepare the foundation, use the right mix, pack down the asphalt, and seal it. Working with a professional contractor ensures all permits and inspections are in place and that the work is done according to local rules and codes. They will also have all the tools and resources they need to do the job well and quickly. Look no further than J & B Asphalt & Paving for professional asphalt paving services. Our skilled and experienced professionals are dedicated to delivering lasting, high-quality results. We take special care to ensure a smooth and long-lasting surface. In addition, our team is up to date on all requirements to ensure your work is done per local codes and regulations. Don't take any chances regarding your asphalt paving requirements. Contact us today to set up a consultation and learn more about how we can assist you with your next project.
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