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.
January 6, 2017 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

  • CEA conference 2018 – focusing on technology solutions
    May 2, 2018
    New technology and reduced machine emissions were amongst the key topics at the CEA conference in London - Mike Woof writes. Construction machine manufacturers are going to have to find new solutions if targets on emissions controls are going to be met. This is a clear viewpoint for the industry. But as the speakers at the recent CEA conference in London showed, there are differing opinions on how that will be achieved and what technical solutions will come to the fore. Duncan Riding, business development
    Read More
  • Machine control technology round table discussion with Leica Geosystems, Topcon and Trimble
    January 4, 2022
    In this, the first in a series of top-level roundtable discussions led by World Highways, editor Mike Woof and editorial director Geoff Hadwick talk machine control technology with three world-class experts from Leica Geosystems, part of Hexagon, Topcon and Trimble. Find out what these key opinion leaders are thinking on six vitally important topics. Let them help you stay ahead of the game.
    Read More
  • Lintec & Linnhoff has a new plan for the Indian market
    May 4, 2021
    Lintec & Linnhoff has now ended its partnership agreement with Ardent Maschinenfabrik for the Indian market. Instead, Lintec & Linnhoff has new manufacturing plans for India and is planning to boost its facilities and resources in the country as demand continues to rise for its products.
    Read More
  • Productive milling on Japanese highway
    February 27, 2019
    A large milling machine from Wirtgen has been used to remove the top two asphalt layers of a key route in Japan in the city of Mito, around 140km north-east of Tokyo
    Read More

Highlighted Content