Crack sealing is often used as a first line of defense against pavement deterioration because of the many important benefits it offers. Crack Sealing keeps water from entering and weakening the base or sub-base which can and will cause potholes. Crack Sealing is started by cleaning out all foreign matter with an industrial air compressor. The crack will then be injected with a rubberized hot pour material using a crack sealing system.
There are many different types of cracks that can occur on your asphalt surface.
This type of crack appears primarily in resurfacing projects, although it can occur in a new pavement. It happens when an existing crack in the underlying structure reflects through the surface.
This type of crack forms in a square pattern. This is commonly seen in parking lots that have a lack of traffic where the pavement is constantly flexed.
Edge cracking only appears parallel to and within 18 inches of the pavements edge. Poor base, lack of shoulder support, inadequate drainage, and frost are the most frequent causes for this type of cracking.
When the edges of two pavement mats are placed next to one another pavement joints are created. If the paving mats are not properly bonded then joint cracks appear. There are a variety of reasons joint cracks form in the bonding.
Slippage cracking is usually caused by heavy traffic that is stopping, turning, or climbing a hill creating shear force on the pavement.
|Fatigue or Alligator Cracking
This type of cracking can occur from structural inadequacy, aging, and oxidation. With these types of cracks it is recommended that the areas be removed and replaced rather than filled and sealed.