In 1990, the University of Nebraska-Lincoln began conducting research to develop a novel precast concrete alternative to traditional wood framing for residential homes in the United States. The main objective of this effort was to produce a new housing system, called the “Nebraska University (NU) Concrete House,�? a precast concrete design that would offer superior benefits over conventional construction, including resistance to fire, termites, high winds and storm damage; reduction in home maintenance, dust, and noise; and high energy efficiency for homeowners. Research focused on three new precast concrete systems-a patented fully insulated exterior sandwich wall panel, a floor joist panel, and an under-roof girder framing system designed for fast assembly. The NU Concrete House used only bolted connections, eliminating the need for welding or grouting during erection.
