We recycle the existing surface - mix it with bitumen and put back on the road.
It is given time to set then a further surface treatment is put on to give a permanent road surface, seal it from water and protect the finished road structure.
This is cheaper than resurfacing and seals the existing surface to extend its life. There are 2 different types of road preservation treatment.
Generally used on busy rural or urban roads. It provides more grip, protects from water and air damage and lasts up to 10 years. We fix faults and potholes first, then coat the road with stone chips. Vehicles driving on the road help these set, and we come back to sweep the site to remove excess stones.
In some places, we may use a product called LockChip, this is a coating to seal the new surface.
This is the most cost effective preservation treatment.