Category: Sustainability
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New Mexico Specifying 90% WMA Projects
May 02, 2014
New Mexico DOT issued the 2014 edition of The Standard Specifications for Highway and Bridge Construction. In it they define warm mix temperature as asphalt mix produced at 275F or less. When utilizing warm mix asphalt, ambient paving temperatures can be dropped 20F for open graded friction courses (OGFC) and 15F for dense graded mixes. New Mexico DOT specifies […]
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What Florida does in January
Feb 17, 2014
Where else but Florida can you pave in January while the rest of the country deals with a polar vortex and icepocolypse? Meanwhile, Middlesex Construction began a 2-year project to revamp failing residential roads in Casselberry, Florida,with green technology. To accomplish this, they chose a 9.5mm surface mix PG 58 -28 containing Evotherm WMA technology and 30% RAP. Paving […]
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Grand Canyon North Rim
Dec 10, 2013
“The Grand Canyon fills me with awe. It is beyond comparison—beyond description; absolutely unparalleled throughout the wide world” – President Theodore Roosevelt, 1903 Budget constraints limit how often a road gets paved in our National Parks. The parks are often located in remote enviornments, far from a local asphalt mix plant. Then, in the summer, […]
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One Roof or 200 ft of 2-Lane Highway
Nov 12, 2013
The shingle industry continues to encourage the use of recycled asphalt shingles in road construction. Now roll-off dumpster rental companies are getting on board, too. HomeTownDumpsterRental.com blogged about recycling roofing shingles into asphalt and included an info graphic that encourages everyone from homeowners to government agencies to take up the landfill-reducing practice. "Recycling shingles rather than dumping […]
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Highest Amount of Recycled Material Yet
Jul 23, 2013
Achieving 50% RAP
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Achieving 50% RAP
Jun 18, 2013
Asphalt Contractor documented NB West's success using Evotherm to achieve 50% RAP in their June issue. Technical manager Steve Jackson, PE, foresees "…using more RAP in asphalt pavements will provide a more economical way to meet the growing demands for infrastructure rehabilitation and improvement. In the long term, I think that a 100% recycled asphalt […]
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2012 NAPA RAP/RAS/WMA Survey
Jun 18, 2013
Are you a U.S.-based asphalt mix producer? Has your company submitted its information about RAP/RAS/WMA usage during the 2012 construction season yet? NAPA and FHWA are still looking for information from producers about the use of recycled materials and warm mix. All data submitted is used only for the survey and no information will be […]
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Evotherm in Asphalt Rubber Equals Hassle-Free Construction
Jun 14, 2013
Going the distance
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Caltrans reduces GHG Emissions
Apr 23, 2013
This weeks CalAPA Asphalt Insider newsletter announces that "a new report released by Caltrans last week on the department's efforts to reduce Greenhouse Gas Emissions (GHG) has singled out innovative asphalt pavements as the department's No. 1 GHG-reducing pavement surface." The report titled "Caltrans Activities to Address Climate Change" pays special attention to innovative pavement designs, technologies and […]
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California sets WMA specifications
Apr 01, 2013
Caltrans recently published the latest warm mix asphalt update to their specifications. The Standard Specifications are revised to allow the Contractor to utilize WMA technologies in all projects. The Contractor can select a WMA technology from the approved list (which includes Evotherm) and must meet the material and placement requirements of HMA. Contractors in California […]
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