• Explosives and Blasting
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• v.23 no.3
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• pp.43-56
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• 2005

The defoliation velocity is tile rate of propagation of a detonation in an explosive. An explosive's velocity of defoliation(VOD) can be used to indicate a number of important characteristics regarding the product's performance under specific field and test conditions. Also, it is useful quality monitoring technique and call be measured accurately and easily at borehole and testing sites. This paper discusses the relevance of the detonation velocity of explosives in blasting. Attempts were made to classify detonation velocities and offer an interpretation of blasting process which will be useful to blasting engineers. But it was found that there is not necessarily a direct relationship between defoliation velocity and explosive quality or efficiency.