Chip Seals, also known as bituminous surface treatment is the application of a special protective wearing surface to an existing pavement. It is used to maintain, protect and prolong the life of an existing street or road. Chip seal is one of the oldest and most successful road-resurfacing methods.
Why chip seal?
- Enhances skid resistance and safety with a high friction surface
- Corrects existing pavement damage
- An effective moisture barrier
- Prevents further deterioration of existing pavement
- Has a long life expectancy
- Saves money
How does the chip seal process work?
- Preparation work: Crews seal cracks, repair the road surface, and remove debris.
- Chip seal application: A hot, liquid asphalt emulsion is applied to the road using a special spray truck.
- Aggregate application: A layer of rock chips is applied by a spreader.The chips has a maximum size of 10cm.
- Rolling: Rollers passes several times to produce a tighter chip seal and any debris is swept away.
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Chip seal process.
Chip seal with geofabric.