Asphalt Repair & Maintenance
Asphalt is a bituminous substance that consists of several ingredients. They are sand, some form of aggregate, and a petroleum-based product (Bitumen), that binds everything together (PG 64-22). These elements are mixed together under extreme heat, 350-400 degrees, to create the substance known as asphalt.
There are many different types of asphalt mixes that are created for different purposes. These mixes are different because of the size of the stone that is used in creating the mix. The basic types of mixes vary from state to state. Examples are 448-1, 448-2, 301, and sand mix.
Asphalt pavement is utilized in a variety of different applications because of its durability, cost-effectiveness, simplicity of construction, and strength.
It is the material of choice for parking lots across the nation because asphalt withstands heavier loads and, when properly maintained, it lasts for many years. In order to maximize the life of your asphalt parking lot, it is important to develop a pavement management plan involving routine inspections and ongoing preventative maintenance.
Typical Surface Repair Specification
- During the parking lot inspection by a BSM Inspector the area(s) which require surface repairs will be marked.
- The area(s) are cleaned completely free of debris and will be edged from any vegetation found. Any loose materials are removed from the existing pothole.
- Over the cleaned surface apply residual asphalt binder (tack Coat), for proper adhesion of existing asphalt with new asphalt.
- Potholes cavities are then filled with the required amount of asphalt to be flush with the existing pavement.
- The final top layer of asphalt surface course is then installed over the existing asphalt, (or new asphalt for potholes), and “squared off” to cover the entire area.
- The surface asphalt is then compacted following the optimum compaction requirements for the best performance of the asphalt.
- All new asphalt edges are edge-sealed with hot asphalt sealer. This results in better pavement performance by preventing moisture penetration under the edges which will damage the new asphalt or sub base.
Preventative Maintenance Services:
Structural Maintenance Services: