MnROAD Cell 4: Forensic Investigation of the Stabilized Full Depth Reclamation with Asphalt Overlay

Bituminous test cell 4, on the Mainline at MnROAD was constructed in October 2008 as a partnership between Mn/DOT and Road Science LLC. Cores were taken by Road Science staff soon after construction and then filled the holes with an open graded Hot Mix Asphalt (HMA). In the spring of 2010 significant heaving was noticed in the pavement surrounding the core hole areas. It was decided that a small scale forensic be conducted to determine what caused the heaving in these areas in conjunction of repairing the pavements.