The blasting out of different sections of rocks against each other.
Related Terms |
BLASTING
1. Cleaning materials by a blast of air that blows small abrasive particles against the surface. 2. The act of detonating an explosive.
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BULLING BAR
A bar for ramming clay into cracks containing blasting charges which are about to be exploded.
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CAP CRIMPER
A tool resembling a pliers that is used to press the open end of a blasting cap onto the safety fuse before placing the cap in the primer.
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CONCUSSION
Shock waves in the air caused by an explosion underground or at the surface or by a heavy blow directly to the ground surface during excavation, quarrying, or blasting operations.
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DELAY BLASTING CAP
A blasting cap which explodes at a definite time interval after the firing current has been passed by the exploder. Also known as delay-action detonator.
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DETONATOR
A device, such as a blasting cap, employing a sensitive primary explosive to detonate a high-explosive charge.
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DRY BLAST CLEANING
Cleaning of metallic surfaces by blasting with abrasive material traveling at a high velocity; abrasive may be accelerated by an air nozzle or a centrifugal wheel.
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ELECTRICAL BLASTING CAP
A blasting cap ignited by electric current and not by a spark.
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FAST-DELAY DETONATION
The firing of blasts by means of a blasting timer or millisecond delay caps.
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HORIZONTAL AUGER
A rotary drill, usually powered by a gasoline engine, for making horizontal blasting holes in quarries and opencast pits.
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