Explosives Regulations

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…

Part 1. Flyrock Control: Main Rules, Energy Management, and Surface Protection in Blasting Operations

Part 1. Flyrock Control: Main Rules, Energy Management, and Surface Protection in Blasting Operations Petr Explosives Group (PEG) “Blasting mats are NOT protection — good blast design is.” In a…

What Determines How Heavy the Blasting Mats Must Be?

What Determines How Heavy the Blasting Mats Must Be? A Practical Guide from Petr Explosives Group – PEG Style Now that you know how many mats you need for coverage…

How to Estimate Blasting Mat Coverage and Required Mat Weight

We have many discussions in our Practical Explosives Training School (PETS) classes about how to calculate or/and/or estimate blasting mat coverage. One of the questions we hear most often from…

Lightning During Blast Loading: What Blasters Must Do and Watch For

Lightning During Blast Loading: What Blasters Must Do and Watch For Lightning is one of the most dangerous hazards you will face while loading a shot. A single strike —…