We understand that as members of the public, you probably have a lot of burning questions regarding the roads around Buckinghamshire. Well, we’re giving you the opportunity to get your questions answered by Transport for Buckinghamshire’s Contract Director!
This is the 12th blog post in the series. This week, we’re answering:
What is Surface Dressing?
Surface Dressing is an efficient and effective method for routine maintenance of road surfaces.
Having previously repaired any defects on the road, we spray the existing surface with a thin layer of hot bitumen binder, before spreading stone chippings over the bitumen. This is then made to stick to the existing surface using a heavy roller.
There are many benefits to carrying out Surface Dressing treatment. First of all, it forms a water resistant layer. This makes the road less slippery, and therefore more skid resistant for 7-10 years.
Using Surface Dressing also extends the life of the road, by preventing water (and, as a result of cold temperatures, ice) getting in to cause cracks, which could eventually develop into potholes.
Once we have completed the Surface Dressing, it has to be left for a week before we can return back to the site and sweep the road, removing most of the loose chippings. However, some loose chippings will remain until vehicles drive over them, pressing them into the bitumen.
Surface Dressing work is very weather dependant and so cannot be carried out if the weather is too hot or too cold.
Upon completion of Surface Dressing work, you can drive on the road, but only once all the materials have been laid. If you drive on the wet bitumen before we have spread the chippings, it will stick to your vehicle.
It is not advised to walk, or allow your pets to walk, on the new surface, even when the chippings have been laid. This is because some may stick to your shoes (and your pet’s paws!)