10th 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 2019.

Highlight features & benefits

• Reclaimed Asphalt Pavement: The total estimated tons of RAP used in asphalt mixtures was 89.2 million tons in 2019. This is a nearly 8.5 percent increase from the 2018 construction season and represents a nearly 59.3 percent increase from the total estimated tons of RAP used in 2009.
  Reclaimed Asphalt Shingles: The total estimated tons of RAS used in asphalt mixtures decreased 12.5 percent to an estimated 921,000
  tons in 2019. This reversed the increase in the use of RAS reported during the 2018 construction season,
  with utilization at about 53 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 2019 construction season was 164.5 million tons. This was a 4 percent increase from the estimated 157.7 million tons of WMA in 2018, driven largely by increased WMA tonnage in the commercial and residential sector.