In honor of Earth Day, The Indiana Department of Transportation announced new paving specifications that allow for additional use of recycled materials. By increasing the amount of reclaimed asphalt pavement and recycled roofing shingles within asphalt mixes, INDOT anticipates it can save $10 million to $15 million on annual paving expenses.
Both reclaimed asphalt and roofing shingles contain some of the same liquid asphalt and crushed stone content used in virgin asphalt pavement. INDOT previously allowed a limited amount of reclaimed asphalt pavement and new roofing shingles discarded at the factory to be included in hot mix asphalt.
Starting this April, INDOT contractors can use an increased amount of these materials, as well as post-consumer shingles torn off existing roofs.