Surface dressing is a thin surface treatment consisting of successive layers of bitumen emulsion and aggregates.
Traffic polishes mineral aggregates in the surfaces layer resulting in loss of surface texture and grip.
The consequences are :
- Loss of surface layer texture and drainage
- Loss of vehicle grip, especially on wet roads
Actions
- Reinforce, improve grip
Techniques
Cold mix application including slurry seals and microsurfacing
Asphalt concrete with bitumen emulsion for wearing courses