Potholes are very annoying at best and dangerous at worst. They are not fun to maneuver around and can cause serious damage to your car if you are going fast and don’t see it. But how do potholes get there? Why do they happen?
Potholes are caused when water sinks into the asphalt and reaches the base. In freezing conditions, the water inside the pavement begins to expand as it turns into ice. Ice takes up more space than water and begins to create cracks in the asphalt. As the water freezes and melts over and over again it causes the asphalt to become a weaker structure.
As the asphalt structure becomes weaker, it has a harder time handling the weight of the cars. Pressure given at the wrong angle can cause the pavement to crush in, causing the pothole.
Sealcoating and proper drainage help to keep water out of the pavement. If asphalt pavement is not maintained then it leaves itself vulnerable to the outside elements. In order for asphalt to stay in good condition it needs to be sealcoated every 3-5 years depending on the amount of use that the road gets. If it doesn’t receive the maintenance and protection it causes the pavement to become distressed.
Sealcoating is not a solution once the road has cracked. Once the protective sealcoat layer is thinned or gone then water is able to easily seep into the asphalt pavement. At this point it is pointless to put sealcoating on the top because the water is already in the asphalt and will continue to cause problems even with a fresh layer of sealcoating. In this case you’ll need to get the pothole repaired and then consider getting sealcoating done.
If you need help repairing a pothole or maintaining your asphalt pavement with sealcoating give us a call!