Asphalt is widely used because of its durability and versatility for various projects. It is a petroleum-based product that is both flexible and solid. Proper maintenance and repairs are key to preserving the life of asphalt surfaces. Asphalt damage that is not repaired properly can lead to potholes, uneven surfaces and cracks, which can result in additional expenses.
Minor Projects Include
- Pothole Filling/Patching Repairs
- Minor Asphalt Patching: The edges must be properly prepared and the patch must be compacted with a roller to ensure long-term.
- Crack Filling: Removing any grass or debris from straight line cracks, applying hot liquid rubberized asphalt crack fill to cracks in order to prevent them from expanding.
Major Projects Include
- Resurfacing: Creating joints at perimeter of area being repaired and installing an “overlay” of asphalt over existing surface. This can be done if current asphalt is considered structurally sound.
- Milling: Using a milling machine to pull up current surface, installing new asphalt to areas that were milled.
- Grading: Can be done for proper drainage, especially in the circumstance of standing water.
- Sub-base Reconstruction: Can be needed after asphalt is milled. The sub base consists of crushed rock and provides a stable surface to support the asphalt pavement. It also creates a frost barrier to reduce potential damages from freezing and thawing. If the sub base is found to be too soft, reconstruction of the base and stone would be done. Following the reconstruction, new asphalt would be installed.
Asphalt damage can be caused by a variety of reasons
- Excessive loading
- Weak or thin surface, base or subgrade
- Frost heave
- Incorrect asphalt grade or poor installation techniques