From "SETTING THE STANDARD"
Warm-mix asphalt design may soon be added to our national paving standards.
Download a free PDF or purchase NCHRP Report 691, Mix Design Practices for Warm Mix Asphalt.
For an overview of emerging warm-mix asphalt technologies in the United States, read Warming up to new asphalt mixes.
This summer, the National Highway Institute (NHI) will offer online training courses on warm-mix design. Check the NHI Web site for details.
More recommended resources: Federal Highway AdministrationNational Asphalt Pavement AssociationNational Center for Asphalt TechnologyInternational Warm-Mix Conference, Oct. 11-13, 2011
FROM "RETHINKING RETREADS"
A tire retread program can revive your fleet budget, if done right.
Curious about how the retread process works? Click below to see a step-by-step slide show, from tire inspection to bonding.
Solid waste & disposal
FROM "REWRITING THE BOOK"
Contract specifications help San Diego avert fines related to California disposal reduction targets.
To view San Diego's The Whitebook, as well as the city's previous specifications, click here.
FROM "SKIMMING THE SURFACE"
A clarifier retrofit project solves capacity and scum issues, while saving construction costs.
Using the Rim-Flo circular clarifier
The Water and Sewer Department of Englewood, Ohio, retrofitted its wastewater treatment plant with a circular clarifier. The project addressed scum buildup and capacity issues, and saved the city money by reusing existing equipment.
Video: Click here to see Siemens' Rim-Flo clarifier in action.