POWDER FACTOR WITH SOLVED EXAMPLES
Powder factor is a measure of the amount of explosive required to fragment a given volume or given quantity of rock.
It is the relationship between how much rock is broken and how much explosive is used to break it.
It serves as an indicator of how hard the rock is, or the cost of the explosives needed.
The unit of powder factor is tonne/kg.
For solid blasting it lies in the range of 1.5 to 2.5 tonne/kg.
For the cut blasting it lies in the range of 4 to 5 tonne/kg.
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