1. Project Manager of the Superpave Asphalt Technology Program, The Univ. of Texas at Austin, 3208 Red River CTR 318, Austin, TX 78705.
2. Graduate Student, The Univ. of Texas at Austin, 1 University Station, Mail Code: R9100, Austin, TX 78712.
3. Texas Dept. of Transportation, Construction Division, Materials Section, 9500 N. Lake Creek Parkway, Building 51, Cedar Park, TX 78717.