Astec Double-Barrel XHR plant processes more RAP, addresses future admissions concerns

Astec’s Double-Barrel XHR plant provides more use of recycled asphalt planings (RAP) today – and helps meet emissions standards of the future. The Double-Barrel XHR is built on previous technology, said Malcolm Swanson, President of Astec, a subsidiary of Astec Industries Inc. But the Double-Barrel XHR plant also features new improvements, including a stainless steel drum and combustion flighting, that withstand the higher temperatures associated with RAP.
April 22, 2015 Read time: 2 mins
The Double-Barrel XHR plant does not require a separate RAP dryer.

Astec’s Double-Barrel XHR plant provides more use of recycled asphalt planings (RAP)  today – and helps meet emissions standards of the future.

The Double-Barrel XHR is built on previous technology, said Malcolm Swanson, President of Astec, a subsidiary of 681 Astec Industries Inc. But the Double-Barrel XHR plant also features new improvements, including a stainless steel drum and combustion flighting, that withstand the higher temperatures associated with RAP.

“The biggest benefits to the plant are its flexibility and emissions,” said Malcolm Swanson, president of Astec, a subsidiary of Astec Industries Inc.

The potential emissions reductions result from Astec’s elimination of a separate dryer for RAP. Swanson said that is significant because emissions that come from those dryers are increasingly facing scrutiny. The Double-Barrel XHR does not require that separate dryer, and therefore does not have the resulting emissions.

“Separate RAP dryers likely will need more pollution controls in the future,” Swanson said. “With this plant, you don’t have those emissions.”

V flights and their efficient heating of materials are among the key factors enabling elimination of the separate RAP dryer, he said.
The flexibility, meanwhile, means plant use of RAP can range from none to 65 per cent, Swanson said.

For more information on companies in this article

Related Content

  • Asphalt Plant innovation in the US and Eastern Europe
    May 20, 2014
    While one leading asphalt plant manufacturer is claiming a RAP production first, another is proving a big success in one part of Eastern Europe. Guy Woodford reports Astec Industries is continuing its track record for innovation by claiming it is the only asphalt plant manufacturer offering asphalt mix producers a 100% RAP [Recycled Asphalt Pavement] plant. With the addition of the Conexpo 2014 launched RAP KING plant to its product line, Astec says it is now able to offer a complete array of plants coverin
    Read More
  • Advancing asphalt plant technology
    June 9, 2016
    Advances in asphalt plant technology were in major evidence at the bauma 2016 exhibition in Munich - Mike Woof writes One of the most apparent developments at bauma 2016 was the strong focus on asphalt plant technology. The massive physical presence of the asphalt plants could be seen from a distance, right across the showground, particularly the 50m-high machine Benninghoven had opted to exhibit. However, other plant systems from rival firms Ammann, Lintec and Marini, as well as Turkish company E-MAK, c
    Read More
  • Astec develops innovative asphalt plant with additional recycling capability
    June 23, 2015
    Astec’s headline RAP plant can use up to 65% RAP content As it does for the 50% double barrel system aggregate dryer/drum mixer model, Astec is guaranteeing that its customers will get the increased percentage. The unit runs at 181-360tonnes/hour production (200-400UStons/hour). Astec, based in Chattanooga, Tennessee, manufactures all of their state-of-the-art Hot Mix Asphalt plants in the US. They introduced the first double barrel plant in 1989, according to executive vice president Steven Claude, during
    Read More
  • Astec develops innovative asphalt plant with additional recycling capability
    June 23, 2015
    Astec’s headline RAP plant can use up to 65% RAP content As it does for the 50% double barrel system aggregate dryer/drum mixer model, Astec is guaranteeing that its customers will get the increased percentage. The unit runs at 181-360tonnes/hour production (200-400UStons/hour). Astec, based in Chattanooga, Tennessee, manufactures all of their state-of-the-art Hot Mix Asphalt plants in the US. They introduced the first double barrel plant in 1989, according to executive vice president Steven Claude, during
    Read More

Highlighted Content