Over a specific time period, pavements tend to develop cracks. These cracks trap moisture which can ultimately transform them into muddy potholes in no time. You can give these cracked asphalt roads and pavement a longer life by paying a little attention.
Here is everything you need to know about pavement cracks and how to get them fixed.
What Are the Common Causes of Pavement Cracks?
Multiple factors cause cracking in a pavement. For instance, temperature changes, trapped moisture in the pavement’s underlying layers, adverse weather conditions, and excessive traffic load are a few significant factors which affect the pavement’s durability and performance. As a result, the asphalt mix weakens, causing the surface to weaken and crack.
How Do Cracks Turn into Potholes?
When cracks absorb moisture, they expand and contract when pressure is applied to the surface. The movement of traffic over a road’s weak spots causes the underlying layers of the pavement to break. This creates potholes. The continued process of vehicles passing over the potholes and regular water exposure can further increase the potholes’ size and depth.
What Are the Common Types of Cracks, And What Can Be Done to Fix Them?
1. Longitudinal Cracking
These cracks develop along the centerline of the pavement. They emerge on both asphalt and concrete pavements. Many factors can cause this cracking, including:
- Heavy traffic
- Tire pressure
- Low temperature
- Improper pavement installation
- Gaps in asphalt/concrete and the ground
Longitudinal cracking can be fixed by filling and sealing the cracks. Adding a new layer on top of the pavement using asphalt repair techniques could also help.
2. Fatigue Cracking
Also known as alligator cracking, this type consists of closely spaced cracks which form a pattern on the overall surface. Repeated axle load is the leading cause of this cracking. It can be fixed by complete removal and replacement of the pavement.
3. Block Cracking
Block cracking creates square blocks on the surface of the pavement. The cracks are longitudinal as well as transverse. The primary cause of block cracking is the temperature drop in the surface, which causes a shrinkage in the surface due to the thermal stress. Surface milling of these cracks can help prolong the life of the pavement.
4. Low-temperature Cracking
This type of cracking is caused by a temperature drop in the asphalt pavement layers. As a result, you see transverse perpendicular lines moving to the centerline of the pavement. To remedy the cracking, crack filling and sealing techniques could be used to prevent the surface from further deterioration.
5. Slippage Cracking
Poor adhesion of the asphalt surface and underlying layer causes these crescent or horseshoe-shaped cracks. Complete removal and replacement of the pavement is the only possible fix for this cracking.
Pavement cracks are minor damages that can turn into costly repairs if not addressed in time. Asphalt Specialties LLC provides premium quality crack sealing, sealcoating, and asphalt repair services in Twin Falls, ID. Get a free quote now!