In true innovative GreenDOT style, MassDOT is making pavements more sustainable by recycling old rubber tires for use as part of the actual roadway.
This innovation benefits our customers, MassDOT’s bottom-line and environmental stewardship.
The new pavement uses 18% recycled ground tire rubber in the liquid asphalt binder, which recycles about 2.2 tires per ton of asphalt. In total, as many as 123,000 tires disposed of in Massachusetts will be incorporated into three paving projects on Rt 128 in Waltham, I-90 in Weston, and I-91 in West Springfield.
Even better, testing shows that rubber pavements are quieter than standard pavements and help make the road more resistant to rutting and cracking. This is good news for our customers and for MassDOT in reduced maintenance costs.
Since MassDOT started using this more sustainable pavement in 2008, more than 1,000,000 tires have been recycled statewide. Sustainability benefits go beyond just the life cycle cost and engineering performance to reduction in landfill waste, energy savings and reduced consumption of natural resources.