At the annual “Pavement Preservation Workshop” organized by the California Chip Seal Association (CCSA) in San Diego, more than 260 industry professionals learned about hot areas of pavement preservation technology, including rubberized asphalt.
Rubberized Asphalt Grant Program
Nate Gauff of CalRecycle provided an overview of the state’s efforts to use waste tires in as¬phalt pavements. The department’s grant pro¬gram that started in 2005 has been successful in getting local agencies to use asphalt rubber.
More than $55 million has been dispersed to local agencies. CalRecycle has also contracted with engineering firms to provide technical support and training for local agencies using asphalt rubber. The current contract is with Quincy Engineering in Sacramento. Current research areas include:
- Using RAP aggregate in rubberized chip seals
- Using warm mix asphalt (WMA) technologies in rubberized mixes
- Development of pavement performance curves for rubberized pavements
An estimated 60 million tires have been recycled in to California pavements in the last 20 years. The current rate of use is about 5 million tires per year. More information on the grant program can be found at www.calrecycle.ca.gov.
Do You Have a Project You Want to See in RAF News?
Send a project profile for any recent or upcoming applications of rubberized asphalt to gbway@ra-foundation.org. Projects can be in private or public use, or experimental in nature. All submissions will be considered.