8 ASPHALT PAVER ISSUES
Asphalt is a popular choice for driveways, parking lots, and roads due to its durability and cost-effectiveness. Weather, poor site preparation, high traffic loads, and aging can all cause problems from time to time.
We will be looking at some common asphalt paving issues.
GOOD OFFENSE IS THE BEST DEFENSE
Regular preventative maintenance can prolong the life of asphalt pavements. You can extend the life of your asphalt pavement by maintaining a clean surface, sealing it, and fixing any problems as soon as they occur. Before you can repair an asphalt pavement problem, it is important to understand what they are.
These eight asphalt paving problems are discussed, along with their causes and how to fix them.
You may have never seen grit and gravel in a parking lot. You have probably seen raveling in action. Raveling refers to the destruction of asphalt and rocks by pavement.
The pavement's thickness will decrease over time and the loose gravel will erode the asphalt. Water seeps into the asphalt and makes the problem worse. You may have an uneven surface from raveling ( trip hazard!), or standing water.
Depressions are areas of asphalt that are not fully covered by the pavement. They are usually caused by poor compaction.
If the water and debris build up in the depressions can cause asphalt to wear and compromise its integrity.
Potholes are small depressions that form on pavement surfaces. They penetrate the asphalt layer all the way to the base course. Potholes in asphalt pavement can have sharp edges. As moisture infiltrates, potholes will grow in size.
Potholes in asphalt are often the result of alligator cracked (also called fatigue cracking). Alligator cracking can cause large chunks of asphalt to form. These can be removed by vehicles driving over them. The hole left behind after the pavement has been removed is called a pothole.
These dangerous safety hazards are one the most prevalent pavement defects. Potholes of any depth or rough edges can cause severe damage to vehicles.
4. ALLIGATOR CRACKING
Fatigue cracking, also known as "fatigue cracking" (also called "a.k.a. Fatigue cracking (also known as alligator cracking), is one of the main ways asphalt pavement can become porous over time. It is named after the distinctive cracking patterns which resemble alligator scales.
Alligator cracking is a form of load-related deterioration that results from:
- A sub-grade or base course that is weak
- Too little pavement thickness
- Overloading or
- Combinations of all these factors
If you don't take action, alligator cracks will form and the pavement will continue to decline.
5. LONGITUDINAL CRACKING
Asphalt LV paving cracks with longitudinal cracks are cracks that run along asphalt roads or driveways. These cracks can be caused by many factors, including:
- Poorly constructed joints
- Temperature cycles can cause asphalt to shrink or expand.
- Cracks that reflect off an underlying layer
The presence of longitudinal cracks within asphalt paving is not load-related.
6. BLOCK CRACKING
Block cracking refers to a patch of rectangular cracks that extend up to one foot in asphalt pavement. This type of cracking is common in large areas. It is not dependent on traffic and can occur even when there isn't any traffic.
Block cracking is usually caused by the asphalt binder not being able to expand or contract with the temperature cycles. This can be due to age-related hardening or poor asphalt binder choice.
7. EDGE CRACKS
Edge cracks can be described as longitudinal cracks that form within one to two feet of an outer edge of a pavement. They are more common on rural roads or driveways rather than in city streets.
Edge cracking occurs because there is not enough support at the pavement edge. Because rural roads and driveways are narrower, traffic must drive closer to these edges.
Edge cracks can be caused by poor drainage, poor quality sub-base/base and asphalt shrinkage. Edge cracks can expand and become longer if you don't care for them. More will eventually appear towards the pavement's centerline.
8. ASPHALT UPHEAVAL
Upheaval refers to a localized upward movement of asphalt pavement caused by swelling in the sub-grade from freezing or excessive moisture. Frost heave, one example of this type is distress.
The Paving Crew, LV provides high-quality asphalt paving and asphalt repair to residential, commercial, municipal, and industrial customers.
The Paving Crew LV
(725) 433 6641