What does proper asphalt patching involve?
A lasting patch is a small repair done the right way.
- Mark a square or rectangle around the damage, including the weak pavement around the hole.
- Saw cut or cut out the failed asphalt and remove it.
- Check the base. Wet or soft material is dug out and replaced.
- Add and compact new stone base where needed.
- Place hot asphalt in layers and compact each one with a roller or plate compactor.
- Seal the edges so water cannot sneak in.
The square cuts give the patch clean edges to bond to. This is very different from temporary cold patch, which is dropped in a hole and often washes out. If an entire lot is failing, a mill and overlay may be cheaper in the long run than patch after patch.
