Minnesota Department of Transportation
This report documents substantial work for MnROAD Phase II Construction, which began in 2007 and continued in 2008. Funding sources for the construction and research have come from many partners both locally and nationally. New test cells consisted of both new construction and rehabilitation techniques representing both national and regional interests. Funding for this phase of MnROAD is $10.9 million, which covers construction, research, instrumentation, and administration costs. The core research areas that guided Phase II Construction are mechanistic design, innovative construction, preventive maintenance, recycled materials, pavement rehabilitation, surface characteristics, and other nonpavement research. The purpose of this report is to provide details on the MnROAD construction that was completed during the 2008 construction season. It features projects that involved the reconstruction of Cells 2, 3, 4, 5, 6, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, and 23 on MnROAD's Mainline section and Cells 24, 39, 53, 85, 86, 87, 88, and 89 on MnROAD's Low Volume Road section. The new test cells included various asphalt and concrete pavement materials as well as various aggregate base materials. This report documents the research projects and objectives, pavement structural and mix designs for each cell, instrumentation plan, field construction activities, material sampling, and laboratory test results.
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