Abstract
The experimenters cut plates 5, 10, 15, and 20 mm thick from marble of density delta = 2670 kg/m/sup 3/, and placed manganin sensors between them. In parallel they determined the detonation speed and the speed of the shock wave in front of the rock. Three charts and a table illustrate their results, including observed curves recorded at fixed points in the rock, constancy of the propagation speed and amplitude of the first wave, reduction with distance in the mass velocity of the second wave, and loading and unloading graphs with pressurespecific volume coordinates for granutol. The authors conclude from the experiments that marble in general follows the ectoplastic model on loading by shock waves of amplitude 5-14 GPa. The results show that it is promising to use manganin pressure sensors at various distances from the charge to examine the behavior in the near zone.
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