1. Department of Civil and Environmental Engineering, University of Connecticut, 261 Glenbrook Road, Unit 2037, Storrs, CT 06269-2037.
2. Department of Civil Engineering, Kansas State University, Manhattan, KS 66506.
3. Department of Civil Engineering, University of Texas at Arlington, 408 Nedderman Hall, Arlington, TX 76019.
4. Materials and Research Center, Kansas Department of Transportation, 2300 Van Buren, Topeka, KS 66611.