INCORPORATING A FLY ASH STABILIZED LAYER INTO PAVEMENT DESIGN – CASE STUDY by Sazzad Bin-Shafique, Tuncer B. Edil, Craig H. Benson and Aykut Senol Geo Engineering Report No. 03-04 Geo Engineering Program University of Wisconsin-Madison 1415 Engineering Drive Madison, WI 53706 February 5, 2003