1. Research Assistant, Dept. of Civil Engineering, Univ. of Akron, Akron, OH 44325.
2. Associate Professor, Dept. of Civil Engineering, Univ. of Akron, Akron, OH 44325 (corresponding author).
3. Assistant Professor, Dept. of Civil Engineering, Ohio Univ., Athens, OH 45701.
4. Research Assistant, Dept. of Civil Engineering, Ohio Univ., Athens, OH 45701.
5. Asphalt Materials Engineer, Ohio Dept. of Transportation, 1600 W. Broad St., Columbus, OH 43223.