Rolled asphalt
Rolled asphalt is a collective term for all asphalt layers that have to be compacted when paving with rollers . The rolled asphalt courses include asphalt base course , binder course , asphalt concrete and stone mastic asphalt . Today, rolled asphalt is one of the most common paving methods for asphalt surface courses.
method
When paving rolled asphalt, the hot mix is brought from the asphalt mixing plant to the paving site by truck. Avoid cooling the mix. At the installation site, the truck reverses up to the paver finisher and dumps the mix into the paver's receptacle. This feeds the screed at the front end of the paver so that the mix is paved in the desired width and thickness and is pre-compacted. The asphalt must then be compacted with tandem vibration rollers and pneumatic tire rollers in such a way that sufficient storage density is created. Careful execution of the rolling process is critical to the quality of the asphalt. Errors in compaction cause uneven road surfaces and poor resistance to traffic.
Areas of application
There are also design options for rolled asphalt that set it apart from the pure street asphalt. By embossing patterns (e.g. BuGa Schwerin, Marstall building) or grinding the surface (e.g. Landesgartenschau Aschersleben 2010, road network), planners are given new opportunities to combine the advantages of rolled asphalt with attractive design.