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Powder factor

Richard Ash presented key ratios 56 years ago that could be applied throughout surface blasting conditions to give comparisons between multiple types of operations. Photo: iStock.com/Xesai

The 4 most costly blasting mistakes you can make

Improperly addressing certain mistakes will lead to increased drilling and blasting costs and performance decreases. Precision Blasting Services' Anthony Konya explains why. Keep Reading

Photo: koer/iStock / Getty Images Plus/Getty Images

Blasting: The story of breaking rock

The final chapter in P&Q’s special series offers a history of blast design and what’s ahead to optimize quarry blasting. Keep Reading

Richard Ash presented key ratios 56 years ago that could be applied throughout surface blasting conditions to give comparisons between multiple types of operations. Photo: iStock.com/Xesai

Evaluating the effectiveness of powder factor

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Powder factor design, which does not provide any indication of breakage, muck pile characteristics or environmental considerations, is a dated approach that ultimately costs producers. Keep Reading

In terms of rock strength, blasts today are often designed only considering rock density because rock generally gets stronger as it gets denser. Photo: iStock.com/xtrekx

Blasting mechanics: Material properties and powder factor

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Read about the true influence rock strength, rock structure, velocity and powder factor have on a quarry blast’s effectiveness. Keep Reading

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