New technologies allow asphalt production at reduced temperatures. Energy consumption per ton of asphalt and on-site emissions are significantly reduced. While conventional asphalt is produced at around 170°C, current low-temperature processes allow temperatures of approximately 100°C. Ammann offers several technologies for this purpose. Depending on the application, foamed bitumen, waxes and other additives, specialty bitumen, or alternative mixing cycles may be appropriate.
Ammann Foam technology creates foamed bitumen by injecting cold water into hot bitumen under pressure, allowing asphalt to be produced at lower temperatures without chemical additives.