WORKING PRINCIPLE
‘COATAR’ – Pothole Patching Machine for road repair unit shall be mounted with rear mounted boom using spray injection method to pothole repairs for roadways, highways, shoulders, sidewalks, foot and cycle paths and parking areas.
1. Cleaning:
A high-volume blower first removes loose debris, dust and moisture from the pothole, ensuring a clean surface for the patch to adhere to.
2. Preparation:
The machine then sprays emulsion (tack coat) on the clean surface, which acts as a sealant and base.
3. Filling:
The machine fills the hole with gravel coated uniformly with bitumen emulsion using the spray injection method with high-velocity air into the pothole, ensuring compaction from the bottom up.
4. Finishing:
A final layer of dry aggregate or sand can be sprayed to protect the wet patch and prevent traffic from disturbing it.