Tag: drilling and blasting

Cat says the DTH hammer's valved design, Cat says, provides reliable operation, low air consumption, easier maintenance and cost effective rebuild. Photo courtesy of Cat.

Caterpillar debuts hammers, bits for blasthole drilling

September 9, 2019By Joe McCarthy

Cat released down-the-hole hammers and bits designed for severe blasthole drilling applications that improve on operation and maintenance.

John Capers, right, served on the NFPA (National Fire Protection Association) 495 and 498 Committee on Explosives and as a technical advisor and reviewer for many publications and programs. Photo courtesy of Austin Powder

Austin Powder’s Capers honored for blasting expertise

April 22, 2019By Kevin Yanik

Technical manager John Capers was presented a special award at this year’s Ohio Drilling & Blasting Conference.

Today’s commercial explosives are compound mixtures that contain carbon, hydrogen, oxygen and nitrogen. Photo: iStock.com/Pattadis Walarput

Blasting mechanics revisited: Characteristics of explosives

March 20, 2019By Anthony Konya and Dr. Calvin J. Konya

Exploring modern products, including the function and selection of explosives based on properties and cost for your blasting process.

After decades of experimentation, blasters today have a good understanding of the key components to an effective blast. Photo: Kevin Yanik

Blasting Mechanics Revisited: The mechanics of rock breakage

January 28, 2019By Dr. Calvin J. 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.

Ensure all of your personnel are at a safe distance when a blast is set to occur. Photo courtesy of Dyno Nobel

Blasting precautions you must take

October 24, 2018By Joe Nawrocki

Dyno Nobel’s Joe Nawrocki shares how to prevent premature detonation and flyrock at your operation.

Rhythmic timing practices in drilling and blasting applications

May 25, 2018By Anthony Konya and Dr. Calvin J. Konya

Proper design and critical timing functions should be incorporated into your method to deliver better blast results.