Help Quantify Asphalt's Sustainable Advantages

Input sought from all U.S. asphalt producers by April 30 for annual NAPA-FHWA survey to gauge use of reclaimed/recycled materials, warm-mix asphalt technologies


Lanham, Md. — Attention all asphalt mix producers: The National Asphalt Pavement Association (NAPA) and the Federal Highway Administration (FHWA) need to hear from you by April 30 about last year’s use of warm-mix asphalt and reclaimed/recycled materials. NAPA, in partnership with FHWA, is conducting a confidential industry-wide survey of 2014 production levels and the use of recycled materials and warm mix.


"We know asphalt is the most sustainable paving option, and recycled materials and warm-mix asphalt technologies are critical to the industry's sustainable future. We need your help in benchmarking the industry’s progress in putting sustainable practices into use," stated Kent Hansen, NAPA Director of Engineering, who is administering the survey.


NAPA and FHWA have tracked usage of reclaimed asphalt pavement (RAP), recycled asphalt shingles (RAS), and warm-mix asphalt (WMA) since the 2009 construction season. The results from the 2013 construction season were released last October and showed that more than 106 million tons — nearly a third of all asphalt pavement mixtures produced that year — used WMA technologies.


From 2009 to 2013, this survey has documented increasing uses of RAP and RAS; starting in 2012, it began tracking the use of other recycled and reclaimed materials, including ground tire rubber and slags. Full results of the 2013 survey are available at


Asphalt mix producers may participate in the confidential survey by visiting The deadline for responses is April 30. It is recommended that respondents download a printed version of the survey from to ensure that all the relevant data is at hand before beginning the process. Survey participants will receive a complimentary copy of the report once it is released.


Data from the survey will be kept completely confidential and will be used only for the purposes of determining quantities. Data will be reported at the state level only if three or more companies from the state or territory participate, and no company-specific information will be disclosed or used for any purpose.


Because data is being aggregated by state, companies or branches active in more than one state need to complete a separate questionnaire for the mixes produced for each state. If a plant provides mix for more than one state, the tonnage should be divided accordingly.


The 2013 survey included responses from all 50 states, the District of Columbia, and Puerto Rico. Responses from all U.S. states and territories are desired for the 2014 survey.


Survey results will be shared with the industry, and agencies to help in the implementation of recycling and warm-mix technologies, as well as to broaden public understanding of the sustainable nature of asphalt pavements.