What are Asphalt Repairs?
Asphalt Repairs are localized areas of existing asphalt where the asphalt has become deteriorated or depressed. In certain cases, the base rock underneath the asphalt may already be exposed, creating a pothole which can be a liability for the owner of a property.
Why are Asphalt Repairs Important?
Asphalt Repairs become necessary for a multitude of reasons. Whether it be standing water, chemical spills, root damage, or simply wear and tear, asphalt repairs should be performed prudently to remove the risk associated with them. The first step in any asphalt repairs project is assessing the source of the damage, and the proper solution. When looking at asphalt repairs our estimators are considering the following:
- Is the asphalt damaged as a result of poor drainage?
- If so, the surrounding area may need to be graded properly to allow for water to make its way to a nearby catch basin or drain field
- Is the asphalt damaged because of nearby tree roots?
- If so, roots may need to be pruned or removed, and bio-barrier or curbing may need to be installed to prevent the roots from causing more damage
- Is the asphalt damaged because of poor base conditions?
- If so, the limerock underneath the damaged asphalt may need to be addressed, as well
- Is the asphalt damaged because a sink hole is forming beneath the surface?
- If so, excavation down to the source of the sinkhole is required to address the problem
- Is the asphalt damaged because of recent exposure to caustic chemicals, like hydraulic fluid?
- If so, the affected area should be entirely removed to prevent further damage
How are Asphalt Repairs Performed?
Once our crew is onsite to perform the repairs, they will begin the process:
- First, damaged materials are saw-cut and removed, creating a rectangular area within which to work
- Then the area of the repair is compacted and graded to ensure a proper base level is present and the correct elevations are achieved. In certain cases, additional limerock may be brought in to bring the surface of the repair area up to the proper depth
- Once the repair area is properly prepped, a DOT approved tack coat is applied to the surface which ensures the asphalt adheres to the repair area
- Next, DOT approved hot mix asphalt is supplied and installed to a thickness greater than necessary
- After the asphalt is laid down, a 3-5 ton vibratory roller is run over the patch to compact it to the proper height
- Finally, a plate compactor or hand tampers are used to create a flush transition to the surrounding areas
Asphalt repairs can be driven or walked on almost immediately after the crew finishes compacting the patch. The repairs take up to two weeks to fully cure, and some settling is normal.