US Army Corps of Engineers
Engineer Research and Development Center Website

Three ERDC labs come together for success in Thule, Greenland
Researchers successfully attempted a repaving design that incorporated buried extruded polystyrene (foam insulation boards) to prevent permafrost thaw at the most critical locations on the runway.

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Photo by: Kevin Bjella |  VIRIN: 170216-A-BM524-004.JPG