Brian K. Diefenderfer, Ph.D., P.E.

• Dean's List for Excellence in Teaching, College of Engineering, Virginia Polytechnic Institute and State University, fall 1998, spring 1999  
  
• VTRC Horizon Award for Outstanding Productivity and Achievement, 2005 and 2009  
• VTRC Jack H. Dillard Award for Best Paper, 2010, 2013, 2014, 2015, 2016, 2019, and 2021
  
• Golden Leaf Award for Most Outstanding Technical Paper, Pavement Recycling and Reclaiming Center, California State Polytechnic University, Pomona, 2011  
• Outstanding Young Alumni, Charles E. Via Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, 2012
  
• VTRC Tilton E. Shelburne Award for National Leadership, Virginia Transportation Research Council, 2014  
• VTRC Jack H. Dillard Award for Best Paper, (with S. W. Katicha, S. Shrestha, and G. W. Flintsch), 2021

National Research Projects:

• SHRP2, Project R-06F, Co-Principal Investigator, Development of Continuous Deflection Device (with Virginia Tech Transportation Institute and Transport Research Laboratory – UK), 2010-2013
  
• NCHRP, Project 09-51, Co-Principal Investigator, Material Properties of Cold In-Place Recycled and Full-Depth Reclamation Asphalt Concrete for Pavement Design (with University of Maryland), 2012-2017
  
• NCHRP, Project 09-62, Principal Investigator, Rapid Tests and Specifications for Construction of Asphalt-Treated Cold Recycled Pavements, 2017-2022
  
• NCHRP, Project 14-43, Construction Guide Specifications for Cold Central Plant Recycling and Cold In-Place Recycling,2020-2022