Warm-Mix Asphalt Solutions

Warm-Mix Asphalt
Innovative and Forward-Looking

Adding Sustainability, Retaining Quality

Lowering the manufacturing temperature opens up new opportunities for asphalt as a construction material. Lower energy costs and less emissions are only part of the positive characteristics of low-temperature asphalt.

Despite the growing number of varied solutions that have appeared on the market, it is not enough to focus exclusively on a particular method of introducing additives or foam bitumen. The entire process chain is affected, starting with drying at a reduced temperature through to specific mixing sequences and on to the introduction of recycling. Ammann has focused their research and development on the complete manufacturing process for low-temperature asphalt with an injection device being simply the beginning.

Energy efficiency and low emissions

New technologies enable the manufacturing of asphalt at reduced temperatures. The energy consumption per tonne of asphalt and the emissions at the road construction site drop significantly. While conventional asphalt is produced at around 170°C, the low-temperature processes of today allow production temperatures of around 100°C. Ammann offers various technologies for this. Foam bitumen, waxes and other additives, special bitumen or alternative mixing cycles can be suitable for use, depending on the application.

Ammann Foam

Ammann Foam technology creates foam bitumen by injecting cold water into hot bitumen under pressure, allowing for asphalt production at lower temperatures without chemical additives.