Asphalt Pavement Maintenance Planning

If you have a schedule in action for your facility’s asphalt maintenance? Proper periodic inspection and treatments are important in preserving a quality surface and facilities as asphalt surfaces mature, erode, and become brittle. By ensuring that the repair applications are matched to the seriousness of the pavement issues, the right plan of action will save time and resources.Do you want to learn more? Visit Elite Sealcoating LLC – Highlands Pavement Maintenance

Defects: An Overview

Surface, Bond, and Structural Failures are the three most common types of asphalt failures. Raveling and transverse or longitudinal cracking may occur as a result of surface failures. Raveling is the removal of aggregate from the surface as a function of tyre abrading. Transverse cracks are 90 degrees to longitudinal cracks which travel in the same direction as traffic. Shrinkage is the most common source of longitudinal fractures.

The most common cause of bonding failures is slippage between two layers of surfacing, which results in cracks in the upper layer. The top layer will flake off in fragments in certain situations due to a combination of bonding and crack failures.

Structural cracking, which includes fatigue cracking and rutting, is the most serious flaw. Fatigue cracking occurs as the surface is flexed up and down by passing heavy loads. The cracks are very tight together and resemble the shell of an alligator. When the underlying road segment will no longer withstand the loads being added to the surface, this defect exists. A single large truck will flex and destroy a road more than tens of thousands of cars driving by. Rutting is a depression along the surface in the wheel direction that generally runs the length of the roadway. It may occur throughout only the asphalt layer or in the whole asphalt, foundation, and soil infrastructure.

Treatments that are available

The various forms of actions available can vary depending on the faults and level of harm discovered on the concrete floor. Surface seal coats, crack filling, slurry seals, partial dig-outs and patching, and absolute overlays are also possible options.

There are many types of surface seal coats to pick from. Slurry, cape, micro-surfacing, fog, and rubberized chip seals are only a few examples. A fog seal is a spray-applied material that requires no concrete or sand and is used to hold the surface aggregate in place. A surface seal coat is made up of a combination of sand and asphalt emulsion, as well as other fillers. It creates a consistent black surface, defends against UV rays, and decreases water penetration. Slurry seals are made up of an emulsified asphalt binder, a graded fine aggregate additive, and water, and they’re spread with pressure by machines.

To reinforce and cover the initial foundation, an asphalt is applied over the top of the current concrete surface. It comes with a variety of thicknesses and may even be rubberized. Where extreme heights are a problem, milling can be needed before the overlay to avoid any possible trip hazards. Overlaying paving grids and fabrics on top of a current broken surface will often add resilience and guard against water infiltration.

Selecting a Course of Action

Asphalt wax coats, slurry seals, and sand seals are often seen in parking lots. This seals are intended for usage in environments where continuous turning forces would be present. The oils are more durable than chip and cape seal oils, and they help to reduce tyre marking on the road.

Slurry, chip, cape seals, and micro-surfacing are often used in streets. These therapies differ based on the road conditions. To get the best output life from the surface therapies, crack filling and dig-out repairs must be done first.

If you will see, there are a number of failure types ranging from small surface problems to significant structural faults, and a variety of therapies to address them. Additionally, adhering to an overall maintenance schedule during the pavement’s lifecycle can help deter early deterioration and extend the asset’s useful life. The easiest approach to get underway is to have an asphalt consulting company or a reputable asphalt contractor evaluate the case and advise you about the most cost-effective course of action.