The reuse potential of tire chips as coarse aggregates in pavement concrete was examined in this research by investigating the effects of low- and high-volume tire chips on fresh and hardened concrete properties. One concrete control mixture was designed, which well exceeds CDOT Class P concrete requirements.

The Advanced Technology Grant (ATG) Program is intended to fund research that will increase or improve recycling techniques and technology; create marketable uses for discarded materials, including but not limited to, strategies pertaining to waste tires; address problems caused by inappropriate disposal of solid waste materials, including but not limited to, waste tire stockpiles; and, make use where possible of the research capacities of Colorado...

This research project reviewed potential noise barrier materials made from scrap tires, selected a material for field testing, designed and built a test barrier at the designated site using the material, and monitored barrier performance for one year. The material selected was a railroad tie replacement made from scrap tire treads