Included in this research scope are several double wythe insulated masonry wall systems (NCMA and Brick Industry Association - BIA), two precast/prestressed sandwich panel systems (PCI), two tilt-up concrete sandwich panels (TCA), three different insulating concrete form wall systems (ICFA) and an exterior insulated cast-in-place wall (CHC). Predictive analytical models, laboratory testing and full-scale explosive experiments are the primary research components.
Through this study, they hope to be able to predict the blast response of these COTS wall systems for both new construction and retrofit structures. The research program will comprise three phases. The first phase will examine existing COTS insulated cement-based wall systems, designed with standard mix concrete to meet a specified wind load and seismic design. The second phase will examine several unique concrete wall systems. The third phase will look at any modifications that could significantly enhance the blast performance of phase one and two products.
The research began in 2006 with the evaluation of 30-foot precast/prestressed insulated sandwich panels. Although, the blast effects are still being analyzed, the damage observed appeared minimal. The next wall assembly test scheduled in 2007 will be the reinforced masonry systems. A third wall assembly planned later in 2007 will be either an insulated tilt-up sandwich panel wall or one of the three ICF wall systems.