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Warm Mix Asphalt UPDATE

Warm Mix Asphalt UPDATE. Does it have to hot to be HMA?. Presented by: Tom Clayton Director of Training and Member Services Colorado Asphalt Pavement Association/ Rocky Mountain Asphalt Education Center Centennial, Colorado www.co-asphalt.com tomclayton@co-asphalt.com.

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Warm Mix Asphalt UPDATE

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  1. Warm Mix AsphaltUPDATE Does it have to hot to be HMA? Presented by: Tom ClaytonDirector of Training and Member ServicesColorado Asphalt Pavement Association/Rocky Mountain Asphalt Education CenterCentennial, Coloradowww.co-asphalt.comtomclayton@co-asphalt.com

  2. Where was WMA placed in 2011? • City of Lakewood, Entire overlay program ~ 60,000 tons • City of Centennial – Several Locations • Arapahoe County – Several Locations • US 50 in Southern Colorado • US 24 Wilkerson Pass • Larimer County – Several Locations • Many more locations in Colorado

  3. What about 2012? • Cities and Counties need to be proactive in allowing the use of WMA. • What is the risk? • No more risk with WMA than with HMA. All specifications must still be met with either mix process

  4. What about 2012? • How does this happen? • Sample language to add to Specifications • Warm mix asphalt (WMA) is allowed as an alternate to hot mix asphalt provided that all material requirements and specification standards are met and as approved by the Agency.

  5. Questions?

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