Road resurfacing programme
Information about which roads we plan to treat, why we surface treat our roads and why we use different treatments.
Surface treating is where a surface treatment is laid on top of the existing road surface. It restores grip and texture and creates a waterproof surface to prevent water damage.
Why we surface treat our roads
All roads wear out with use and need to be maintained and repaired.
If water gets under the surface it can cause damage to the road, either by washing away materials or by expansion when water freezes in cold weather, creating cracks, pot holes damage. Asphalt, the main road material used, becomes brittle and cracks with age and sealing the surface is a simple way of extending the life of the road surface.
Resurfacing, rather than completely renewing the road surface, creates minimal disruption to users, has a smaller environmental impact and has less effect on any cables and other things that are under the road.
How we choose which treatment to use
The condition of the existing road surface and the volume of traffic that uses it decide which treatment is most appropriate.
This is the main method of used as it is ideal for roads with heavier traffic. The existing road surface is sprayed with a bitumen emulsion into which we press stones. To provide the best possible surface we use two different sizes of stone - a layer of 10 mm stones, then a second layer of 6 mm stones to fill any small gaps.
Micro asphalt surfacing
Micro asphalt surfacing or 'micro' or 'thin surfacing' is laid on top of the existing surface by a special machine. It can help to take out minor dips and bumps in the road. This is mainly suitable for estate roads or roads with lower traffic levels.
Rubber and plastic resurfacing
Why we have speed limits after treating
A resurfaced road can be re-opened generally 30 minutes to two hours after treatment.
The dressing takes a while to fully 'bed-in' and during this time, traffic using the road can dislodge stones in the new surface if speeds are not controlled. To ensure the quality of our road surfaces it is really important that drivers slow down for a few days after the dressing takes place.
When it does not go to plan
The processes used to dress roads are sensitive to weather conditions and we sometimes just ca not work as planned if the conditions are not right.
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