Lifecycle Patching Program
Asphalt patching addresses isolated areas of surface distresses at various ages of the asphalt. Currently, patching work is carried out by three methods: mill and fill, infrared, and slurry sealing.
- Mill and fill cuts and removes a section of existing asphalt and replaces it with new asphalt.
- Infrared heats a section of existing asphalt to allow the asphalt to be re-worked and compacted.
- Slurry sealing adds an oil and sand mixture to the surface of the asphalt to fill voids.
All three methods reduce the likelihood of potholes forming and are pavement preservation tools that are used to ensure a road’s service life is met or exceeded.