1. KTH Royal Institute of Technology, Valhallavägen 79, 10044 Stockholm, Sweden.
2. National Concrete Pavement Technology Center, Institute for Transportation at Iowa State University, 2711 South Loop Drive, Suite 4700, Ames, IA 50010–8664.
3. Florida Concrete and Products Association, Inc., 5408 Northwest 67th Street, Gainesville, FL 32653.
4. Northwestern University, A130 Tech, Evanston, IL 60208.