Tag: School of Mines & Metallurgy at the University of Missouri-Rolla

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

April 17, 2019 By Anthony Konya and Dr. Calvin J. Konya

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

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

Blasting mechanics revisited: Blasting design standards

February 21, 2019 By Anthony Konya and Dr. Calvin J. Konya

Knowing how to control a blast’s effects is critical for your operation. Fortunately, basic principles emerged more than 50 years ago to simplify setup.

Blasting Mechanics Revisited: The mechanics of rock breakage

January 28, 2019 By Dr. Calvin J. Konya and Anthony Konya

Part 1 of a four-part Pit & Quarry series reflects on practical blasting concepts put forth more than a half-century ago, and how they remain highly relevant to aggregate producers today.