Blast Design

When Do You Need to Placard Your Truck?

When Do You Need to Placard Your Truck? A Practical Guide for Commercial Blasters Transporting Explosives and Detonators By Petr Explosives Group (PEG) In commercial blasting operations, transporting explosives and…

Why Some Detonators Are HD 1.1 and Others Are HD 1.4

Detonators and Squibs in Mining: Why Some Are HD 1.1 and Others Are HD 1.4 By Petr Explosives Group (PEG) In mining and blasting operations, detonators and squibs are fundamental…

What the Driller Should Report to the Blaster

What the Driller Should Report to the Blaster Why Drilling Data is Critical for Successful Blasting Operations In surface mining and quarrying, the drilling phase is much more than simply…

Part 3. Flyrock Risk Thinking for Blasters: Observation, Confinement, Exposure

Part 3. Flyrock Risk Thinking for Blasters: Observation, Confinement, Exposure A Safe, Teaching Framework for Modern Blasting Practice by PEG Associates After catching up with old friends and fellow blasters…

PART 2. Designing Sand Covers for Blast Flyrock Control: Practical Engineering Guidelines

PART 2. Designing Sand Covers for Blast Flyrock Control: Practical Engineering Guidelines Sand cover can be estimated from the upward energy trying to eject rock, but the cardinal rule is…

Using Sand Instead of Blasting Mats: How to Calculate Required Weight and Apply It Safely

Part 1. Using Sand Instead of Blasting Mats: How to Calculate the Required Weight and Apply It Safely By Petr Explosives Group (PEG) “If flyrock occurs, the blast design has…