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Precision Blasting

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Published on Jan 2, 2007

Like most facets of engineering, precision blasting strives to use the least amount of consumables possible while achieving an acceptable result. Much like how one can overbuild anything in engineering, anyone can successfully blast something given enough explosives. The craft is to combine economy, control and safety in order to minimize noise, dust and general disturbance while maximizing fragmentation and desired breakout shape. A good blaster can make a tall or shallow pile, throw it left or right, or minimize the throw, all depending on what mucking equipment will be used. Anyway, this is all going somewhere: in March 2004 I was on a field trip out to Milton, ON to see an open pit blast at a Dufferin Aggregates facility. The blast went off perfectly despite some water in the holes.

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