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/driveway, levelled and then brushed it to give the pavement/driveway 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 Basics Of Slurry Surfacing With Asphalt Emulsions.