Detroit Metro Airport, Detroit, MI
This project consisted of the reconstruction of Taxiway K and the adjacent apron for the new North Terminal at Detroit Metro Airport. It consisted of approximately 120,000 syds of 17 inch PPC pavement which was placed over a bituminous base. Taxiway K and the adjacent ramp were constructed in conjunction with the new North Terminal Project, which has become the home for all airlines other than NWA and affiliates at Detroit Metropolitan Airport. The specification for the concrete called for a modified P-501, and this project was the first time that the specification was utilized throughout the country.
The main difference in this P-501 specification was the use of blended aggregate mix using aggregates that are not prone to alkali silica reactivity issues. Comprehensive testing was performed and monitored on the materials daily to ensure compliance with the rigid specification. Another major challenge involved with the project was the compressed schedule under which the project was to be built. The project began in the spring of 2008 and was completed on time by fall of 2008 despite several setbacks in the schedule due to unforeseen underground utility conflicts.