U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

Skip to content U.S. Department of Transportation/Federal Highway AdministrationU.S. Department of Transportation/Federal Highway Administration

Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations



Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-09-0048
Project Name:   Asphalt Sustainability Issues: Evaluation of Long-Term Performance of Recycled Additives, Including Recycled Motor Oil, Reclaimed Asphalt Pavements, Reclaimed Asphalt Shingles, and Bioasphalts
Project Status:   Active
Start Date:  September 15, 2009
End Date:  December 31, 2012
Contact Information
Last Name:  Youtcheff
First Name:  Jack
Telephone:  202-493-3090
E-mail:  jack.youtcheff@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Pavement Materials Team [HRDI-10]
Program:   Innovative Pavement Research and Deployment
Laboratory:   Chemistry Laboratory
Project detail
Roadmap/Focus area(s):   Environmental Streamlining/Stewardship
Project Description:   The computer program for calculating solubility parameters is based on (a) elemental composition and aromaticity and (b) group (chemical functional groups) contributions. Solubility parameters for blended material are needed to generate phase behavior diagrams.
The key project objectives are:
(1) Develop a computer program for calculating solubility parameters of asphalts, asphalt components, and additives.
(2) Use solubility parameters to predict phase behavior tendency of asphalt and asphalt-additive blends.
Product Type:   Research report
Test Methodology:   Materials are to be characterized using spectroscopic techniques and elemental determinations.
Expected Benefits:   The expected benefit is the development of an approach for estimating phase behavior of asphalt additive and asphalt blends.
Deliverables: 1. Name: Solubility parameter calculator.
Product Type(s): Research report, Software
Description: Tools for assessing the tendency of asphalt and asphalt additive blends to phase separate.
2. Name: Miscibility guide.
Product Type(s): Research report, Techbrief
Description: Guidelines for blending asphalts and asphalt additives.
Project Findings:   The Solubility Calculator provides a good estimate of solubility parameters for binders and polymers; however, the values for most asphalt binders are nearly the same. The application will be much more useful when applied to asphalt components, such as maltenes (and their subfractions) and asphaltenes.
FHWA Topics:   Research/Technologies--Turner-Fairbank Highway Research Center (TFHRC)
TRT Terms:   Infrastructure
Asphalt Additives
Reclaimed Asphalt Pavements
FHWA Disciplines:   Pavement and Materials
Subject Areas:   Maintenance and Preservation


Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101