Warm mix/cold climates

MeadWestvaco (MWV) says that its Evotherm warm mix asphalt technology is now approved by the Colorado Department of Transportation (Colorado DOT) for use in statewide paving projects. The warm mix asphalt system can be used in any traditional hot-mix asphalt application, but with significantly lower temperatures required for paving application. This feature is particularly useful in Colorado's high altitude paving projects and has been tested extensively.
February 28, 2012 Read time: 2 mins
3325 MeadWestvaco (MWV) says that its Evotherm warm mix asphalt technology is now approved by the Colorado Department of Transportation (1490 Colorado DOT) for use in statewide paving projects. The warm mix asphalt system can be used in any traditional hot-mix asphalt application, but with significantly lower temperatures required for paving application. This feature is particularly useful in Colorado's high altitude paving projects and has been tested extensively.

In August 2007, CDOT and MWV began paving a portion of I-70 as an Evotherm test section near the Eisenhower and Johnson Tunnels. This paving project incurred some of the harshest environments to date where Evotherm had been applied - including 89mm of precipitation annually, much of which is frozen and equating to 508mm of snowfall. With 150-200 freeze thaw cycles annually, challenges from annual daily traffic equalling 30,000 vehicles/year on average and 10% truck traffic, this test area provided significant challenges.

CDOT said that the trial with MWV allowed it to answer lingering concerns regarding moisture susceptibility for warm mix asphalt. Even at an altitude of nearly 3,350m, the roadway paved with Evotherm is performing well. The CDOT and the National Center for Asphalt Testing (NCAT) recently published a three year project report, and Evotherm is said to have matched the performance of traditional hot mix asphalt.
Asphalt milling, paving & compaction

For more information on companies in this article

Related Content

  • Increased milling productivity
    February 6, 2012
    Using a wider milling drum on certain applications has allowed an Italian contractor to boost productivity.
    Read More
  • Building Egypt's world class Desert Highway
    May 3, 2012
    A huge highway upgrade project will transform the Cairo-Alexandria road link into a world-class connection as Mike Woof reports. The work to upgrade the Desert Highway connecting Egypt's sprawling capital Cairo with its major port Alexandria, is one of the country's largest infrastructure projects for many years. This 220km highway link is being widened and improved to cope with the hugely increased traffic volumes resulting partly from Egypt's fast growing vehicle population. The Egyptian economy is strong
    Read More
  • Building Egypt's world class Desert Highway
    April 13, 2012
    A huge highway upgrade project will transform the Cairo-Alexandria road link into a world-class connection as Mike Woof reports. The work to upgrade the Desert Highway connecting Egypt's sprawling capital Cairo with its major port Alexandria, is one of the country's largest infrastructure projects for many years. This 220km highway link is being widened and improved to cope with the hugely increased traffic volumes resulting partly from Egypt's fast growing vehicle population. The Egyptian economy is strong
    Read More
  • Fast bridge building in Tennessee
    July 5, 2016
    The Tennessee Department of Transportation (TDOT) recently completed the Fast Fix 8 bridge project in Nashville, with help from a Power Curbers slipformer belonging to Irwin Concrete Construction. TDOT’s goal was to replace eight ageing interstate bridges along Interstate 40 through Nashville using a process called Accelerated Bridge Construction (ABC). This uses fast-paced, around-the-clock work to limit road closures and speed up bridge completion, impacting surrounding communities as little as possibl
    Read More

Highlighted Content