* What: The Double Barrel Green system, which uses water to create a foamed, warm asphalt mix, reduces the temperature needed to create asphalt.
* Company: Astec Industries
* Location: 4101 Jerome Ave.
* How it’s green: In addition to saving heat energy by reducing the temperature from between 300 and 340 degrees Fahrenheit to 230 to 270 degrees, the system also eliminates the smoke and smell typically associated with asphalt paving projects, because light oils in the mix never reach their boiling point, said Ben Brock, president of Astec. Also, fuel consumption is reduced by 14 percent.
* How long will it last: With proper maintenance, the Double Barrel Green System can last about as long as an asphalt plant, which typically is 20 to 30 years, Brock said.