Asphalt Crack Filling
Proper attention to cracks will prevent small problems from becoming big problems. With asphalt preventive maintenance, you can avoid costly replacement and double the service life of your pavement. Filling and sealing cracks in the asphalt in the early stages of deterioration is always the best way to maintain your asphalt.
Crack filling is used as the first defense against pavement deterioration for several important reasons:
- Prevents water damage to sub-base structure
- Delays future costly resurfacing projects
- Keeps sediment and foreign particles out of the base structure
Crack filling prevents further damage and prolongs the life of your asphalt surface. Have bigger issues than a few large cracks? We also provide asphalt patching as a repair option.
- When an existing crack or joint in the underlying pavement structure reflects upward
- Most common in resurfacing projects—but can occur in new-builds
- Forms a square pattern, with cracks intersecting each other at nearly right angles.
- Forms due to lack of traffic—steady traffic constantly kneads the pavement and keeps it flexible.
- Appear only parallel to and within 18 inches of the edge of the pavement.
- Causes include: poor base, lack of shoulder support, poor drainage, or frost action.
- Pavement “joints” are created during initial construction when the edges of two pavement mats are placed next to one another.
- Crack filling these joints immediately will help reduce the spreading of cracks.
- Usually crescent-shaped. The open end of the U-shaped crack always points in the direction of the applied force.
- Caused by heavy traffic that is stopping, turning, or climbing a hill.
Fatigue or Alligator
- Flexible asphalt pavement becomes more rigid over time, and cases tension in the pavement which results in alligator type cracking.
- Such cracking can also occur from structural inadequacy, aging, and oxidation.
- Replacement recommended for alligator cracks instead of sealing.