First publishedin Aggregates Business International
The first Ammann Universal ABP HRT (High Recycling Technology) asphalt mixing plant in North America has been installed in Columbus, Ohio. It began producing mix in early December 2017.
The ABP HRT plant is an ideal fit for asphalt manufacturers which need to incorporate large proportions of RAP without sacrificing production capacity and quality. The HRT is a “two-in-one” plant featuring both warm and cold recycling systems that can be used simultaneously.
There are two warm recycling systems to choose from. One is the conventional concurrent flow dryer for RAP additions of up to 60%. The second is Ammann’s latest development in warm recycling, the RAH100, which can utilise 100% RAP.
The most striking visual difference between the HRT and traditional plant is the vertical stacking of the RAP-bearing components. This configuration reduces wear and sticking and shortens the travel distance of hot RAP material.
The plant has a production capacity of 400tonnes (440 US short tons)/hour. It can utilise foamed bitumen, pigments and other additives