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Impact of Alternative Asphalt Binder Extenders on Asphalt Mixture Design, Production and Performance

Introduction and Survey Consent


NAPA and the State Asphalt Pavement Associations are supporting a study to learn about the Impact of Alternative Asphalt Binder Extenders on Asphalt Mixture Design, Production and Performance. Alternative Binders are defined as: Any binder not produced from distillation of petroleum (crude oil). Examples are bio-based binders from renewable resources like soy, corn, …even biomass sewage. They also include recycled and re-refined oils such as vegetable, cooking and motor oils.

Survey Consent

The primary benefit of the project will be a white paper on impacts alternative asphalt binders and extenders may have on asphalt binder and mixture performance. There are no direct benefits to you in this study activity.
The researchers and University of Nevada, Reno and will treat your identity and the information collected about you with professional standards of confidentiality and protect it to the extent allowed by law. You will not be personally identified in any reports or publications and your responses will be pooled with all other participants and reported in summary format (charts and common themes). The US Department of Health and Human Services, the University of Nevada, Reno Research Integrity Office, and the Institutional Review Board may look at your study records. If you have questions at any time please contact Adam Hand at (775) 784-1429 or by at
Your participation in this study is completely voluntary. Declining to participate or stopping your participation will not have any negative personal effects. The survey should takeless than 10 minutes to complete. 
Thank you for your participation in this study!

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1. Do you give your consent? *This question is required.