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DTIC ADA513200: Blast and Fragmentation Suppression with Aqueous Foam and a Kevlar Tent

Aqueous foam has long been considered a good material to suppress the blast from an explosive event. The airblast produced is reduced significantly if the explosive is covered with an aqueous foam. However, for fragmenting munitions, the foam does not reduce the velocity of the fragments significantly. In order to reduce the hazard more effectively, the fragments must be stopped or reduced, along with the blast suppression. The U.S. Army Research Laboratory (ARL), under sponsorship of U.S. Army Garrison Directorate of Safety, Health, and the Environment (DSHE) and with the cooperation of the Chemical-Biological Defense Command (CBDCOM), Aberdeen Proving Ground (APG) are currently investigating a field system to suppress the blast overpressure and stop the fragments from chemical munitions that cannot be moved or relocated for disposal and must be blown in place. The system consists of a commercial device developed jointly by CBDCOM and Zumro Inc. It consists of an inner and an outer kevlar tent. The explosive device of interest is prepared for detonation, and the outer tent is placed over it. The outer tent is approximately 13 ft x 10 ft x 8 ft tall and it does not have a floor. Th

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