Industry data needed on recycled materials, warm-mix

NAPA is working with the Federal Highway Administration (FHWA) to determine the amount of hot-mix asphalt (HMA), warm-mix asphalt (WMA), and recycled materials being produced and used in each state.

Asphalt mix producers can participate through the 2024 Recycled Materials and WMA Survey, as well as the 2024 Cold-In-Place, Hot In-Place, Cold Central Plant Recycling, and Full-Depth Reclamation Survey. Participants in the survey will be eligible to receive a complimentary copy of the full report.

ASPHALT MIX PRODUCERS
Help us gather 2024 construction season data by completing these surveys by June 2.
Take the Recycled Materials & WMA Survey
Take the CIR, HIR, CCPR, & FDR Survey

Complete and updated data allows NAPA to use the most accurate information regarding the use of recycled materials and WMA to identify areas needing assistance in implementation. NAPA has been gathering data on these innovations since 2009.

The latest published survey results are from 2022 and indicate that asphalt mixture producers remain the country’s most diligent recyclers, with more than 93 percent of asphalt mixture reclaimed from old asphalt pavements being put back to use in new asphalt pavements. The remaining 7 percent is used in other civil engineering applications, such as unbound aggregate bases.

The total estimated amount of recycled asphalt shingles (RAS) stockpiled nationwide at the end of the 2022 construction season was about 1.43 million tons, a 26 percent increase from 2021, while mixtures produced with WMA technologies made up 39.6 percent of the total estimated asphalt mixture market in 2022. About 59.4 percent (103.9 million tons) of those WMA mixtures were produced with a temperature reduction of at least 10°F.