Abstract:
Detonation velocity was measured for an emulsion explosive with the addition of PAP-2 and ASD-4 aluminum powders in charges of different thicknesses with different initial densities. Adding PAP-2 aluminum powder was found to reduce the critical thickness of the emulsion explosive. At large charge thicknesses and densities of the aluminized emulsion explosive of more 1.0 g/cm$^3$, the effects of PAP-2 and ASD-4 powders on the detonation velocity are equivalent. Replacing aluminum powder with talc powder markedly deteriorates the detonation characteristics of the emulsion explosive. The results of the work suggest that PAP-2 and ASD-4 aluminum powders in the emulsion explosive with a density of more than 1.0 g/cm$^3$ react completely during detonation to the Chapman–Jouguet surface.
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