You can see a picture of the road widths of the federal roads; to the right and left of the picture are many green trees; in the centre the road is being renovated with 6 road construction machines.

Energy and CO2 were saved by using low-temperature asphalt in a conventional and compact design.


© PORR

Low temperature asphalt.
Asphalt mix with reduced production and laying temperatures.

Low-temperature asphalt (LTA), also known as temperature-reduced asphalt, is an asphalt mixture used in road construction and transport route engineering. Compared with conventional hot asphalt, it is produced and laid at lower temperatures, which can be up to 30 °C lower depending on the process and type of mixture.

Low-temperature asphalt is used in road construction for various traffic and load classes. The choice of process is made taking into account technical, standard-based and project-specific requirements.

The lower production and processing temperatures can result in differences in energy requirements, production conditions and laying processes. Furthermore, lower levels of vapours and aerosols may be produced during processing.

Other construction methods