This study investigates the blast resistance of fiber-reinforced cementitious composite (FRCC) panels, with fiber\nvolume fractions of 2%, subjected to contact explosions using an emulsion explosive. A number of FRCC panels with five\ndifferent fiber mixtures (i.e., micro polyvinyl alcohol fiber, micro polyethylene fiber, macro hooked-end steel fiber, micro polyvinyl\nalcohol fiber with macro hooked-end steel fiber, and micro polyethylene fiber with macro hooked-end steel fiber) were fabricated\nand tested. In addition, the blast resistance of plain panels (i.e., non-fiber-reinforced high strength concrete, and non-fiberreinforced\ncementitious composites) were examined for comparison with those of the FRCC panels. The resistance of the panels to\nspall failure improved with the addition of micro synthetic fibers and/or macro hooked-end steel fibers as compared to those of the\nplain panels. The fracture energy of the FRCC panels was significantly higher than that of the plain panels, which reduced the local\ndamage experienced by the FRCCs. The cracks on the back side of the micro synthetic fiber-reinforced panel due to contact\nexplosions were greatly controlled compared to the macro hooked-end steel fiber-reinforced panel. However, the blast resistance of\nthe macro hooked-end steel fiber-reinforced panel was improved by hybrid with micro synthetic fibers
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