12th 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 2021.

Highlight features & benefits

• Reclaimed Asphalt Pavement: The total estimated tons of RAP used in asphalt mixtures was 94.6 million tons in 2021. This represents a
  68.9 percent increase from the total estimated tons of RAP used in 2009. Since 2009, total asphalt mixture
  tonnage has increased only 20.6 percent, up 1.2 percent from 2019.
  Reclaimed Asphalt Shingles: The total estimated tons of RAS used in asphalt mixtures increased 8 percent to an estimated 630,000 tons in 2021. The increase in the use of RAS reported during the 2021 construction season still leaves utilization at about 68 percent below the 2014 peak level of reported usage.
• Warm-Mix Asphalt Technologies: The estimated total tonnage of asphalt pavement mixtures produced with WMA technologies for the 2021 construction season was 177.9 million tons. This was a 5 percent decrease from the estimated 186.4 million tons of WMA in 2020, led by decreased WMA tonnage in the DOT and Other Agency sectors.