Ammann Group’s ACP ContiHRT
The ACP ContiHRT plant from Ammann Group, Langenthal, Switzerland, is a continuous plant for the North American market, designed to handle up to 60 percent RAP without burning the light ends off the replacement binder.
The Ammann plant incorporates a high percentage of recycled material by taking an innovative approach to the heating process. The RAH60 dryer, the unique heating system used on the ACP ContiHRT, is designed to gently heat the RAP to prevent damage to the AC. The RAP can still reach its target temperature of 120 degrees C when the new aggregate comes into play. Fresh aggregate is heated in a separate dryer—and at a much higher temperature—where there is no AC to worry about. After heating, the hot, fresh aggregate is mixed with the RAP and in so doing brings the recycled material to its target temperature. The fresh aggregate acts as a second heat source. The gentle heating process does more than protect the coating. It also minimizes fuel usage and emissions.
For more information, visit https://www.ammann.com/us-en/plants/asphalt-plants.