Summary: The Florida legislature passed Senate Bill 1192 that directed the Florida DOT to expand, where feasible, its use of recovered (waste) materials for highway construction. Specifically, it directed that an investigation be conducted for the use of ground tire rubber in asphalt concrete mixtures. Demonstration projects were considered as an integral part of this investigation. Preliminary planning and acquisition of information was initiated in October 1988. Personnel from the University of Florida, Department of Civil Engineering, participated in this effort for the purpose 1) of providing any special guidance or technical assistance, and 2) for documentation of information to be used in the preparation of research reports as stipulated in the research proposal titled “The Utilization of Certain Waste By-Products for Highway Application.” As information was acquired on the properties and production requirements of asphalt rubber mixtures, the FDOT proceeded to identify construction projects suitable for test pavement construction. A total of four projects, two for open- graded and two for dense-graded friction course mixtures, were to be established for evaluation of the constructability of asphalt rubber mixtures. It was intended that the first demonstration project utilizes mixtures conforming to FDOT aggregate blend specifications for the open-graded friction course. However, before a suitable open-graded friction course project could be found, it was decided to proceed with the construction of a dense-graded friction course project in the city of Gainsville. This project offered the advantages of being in close proximity to the testing facilities of the FDOT Materials Office.