6th 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 2015 construction season, including the survey methodology, results, trends, and changes from 2009 through 2015.

Highlight features & benefits

• Reclaimed Asphalt Pavement: The total estimated tons of RAP used in asphalt mixes reached 74.2 million tons in 2015. This is a nearly 3 percent increase from the 2014 construction season, and represents a greater than 32 percent increase from the total estimated tons of RAP used in 2009. During the same time frame, total tonnage increased only 1.8 percent.
  Reclaimed Asphalt Shingles: The total estimated tons of RAS used in asphalt mixes decreased slightly (1.6 percent) to an estimated 1.93 million tons in 2015. Still, the use of RAS in the 2015 construction season increased 175 percent from the estimated 701,000 tons used in asphalt mixtures in 2009.
• Warm-Mix Asphalt Technologies: The estimated total production of WMA for the 2015 construction season was 119.8 million tons. This was a greater than 5 percent increase from the estimated 113.8 million tons of WMA in 2014, and a more than 614 percent increase from the estimated 16.8 million tons in the 2009 construction season.