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Frequently Asked Questions


What is Surface Dressing ?

This is a traditional tried and tested method that involves spreading a layer of stone chippings onto a thin layer of bitumen binder, which is sprayed onto the road first.

This type of treatment is used on roads that are structurally sound but require a new surface to improve skid resistance. The treatment also helps prolong the life of the road by sealing any surface crack and preventing water ingress.

The process usually leaves surplus chippings on the road surface but these will normally be 'run in' by traffic movement or swept up during routine sweeping operations. The surface is usually free from any loose chippings within a few weeks but further sweeping will be arranged if required.

What is Slurry Sealing ?

Slurry sealing is a restoration technique which is well established in the UK. It is a low cost preventative maintenance treatment and should not be confused with resurfacing, where the existing Tarmac surface is replaced. The slurry mixture is a blend of bitumen emulsion, fine aggregate, cement and water, which will considerably extend the life of the underlying macadam. The protective layer of slurry mixture is spread out over the pavement, levelled and then brushed it to give the pavement a textured finish. It then sets to provide a new layer over the existing surface.

The slurry sealing process is weather dependent. Slurry cannot be mixed and applied during wet weather. Wet and humid conditions also slow the drying process of the slurry. In average summer conditions, drying takes less than two hours. Once the slurry has dried, any masking tape will be removed. This part of the process may take place much later in the day, or in some cases, the following day.

The process can extend the life of the average pavement by up to 10 years and costs just a tenth of the price of resurfacing.

What is Patchwork ?

Patchwork involves cutting into the surface around the area of the pothole and removing the damaged surface. New material is then laid into the hole and compacted to repair the area of damage.

This technique is used when there are localised areas of damage that do not require the entire road to be resurfaced. Very often patching is carried out prior to Surface Dressing when there are areas of increased damage to the road surface that Surface Dressing cannot remedy.

What is Plane & Resurface (PRS) ?

PRS is used on roads that have severe irregularities and / or structural problems. The technique involves removing some or all of the existing surface and using a machine to lay new hot material on to the carriageway, which is then rolled to compact it and give a smooth running surface. PRS results in improved skid resistance and a smoother ride for road users, and also means the road surface should require less maintenance in the future.



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