7th Annual Asphalt Pavement Industry Survey on Recycled Materials and Warm-Mix Asphalt Usage

A shared goal of the Federal Highway Administration (FHWA) and the National Asphalt Pavement Association (NAPA) is to support and promote sustainable practices, such as incorporating recycled materials in pavement mixtures and the use of warm-mix asphalt (WMA). This report documents the results of the industry survey for the 2016 construction season, including the survey methodology, results, trends, and changes from 2009 through 2016.

Highlight features & benefits

• Reclaimed Asphalt Pavement: The total estimated tons of RAP used in asphalt mixtures reached 76.9 million tons in 2016. This is a 3.6 percent increase from the 2015 construction season and represents a greater than 37 percent increase from the total estimated tons of RAP used in 2009. During the same time frame, total asphalt mixture tonnage increased only 4.6 percent.
  Reclaimed Asphalt Shingles: The total estimated tons of RAS used in asphalt mixtures decreased 28 percent to an estimated 1.39 million tons in 2016. Still, the use of RAS in the 2016 construction season increased 98 percent from the estimated 702,000 tons used in asphalt mixtures in 2009.
• Warm-Mix Asphalt Technologies: The estimated total production of WMA for the 2016 construction season was 116.8 million tons. This was a 2.5 percent decrease from the estimated 119.8 million tons of WMA in 2015.