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    Quarry Savings and Environmental Impact Reduction from Air Blast

    “Using the VARISTEM® has been a Double Success as we have seen Reduced Noise/Vibration Levels and a Reduction in Explosive Costs of Approximately 12%”
    - Seven Pines Quarry - Ontario, Canada

    Quarry Savings and Environmental Impact Reduction from Air Blast
    Field experience confirms that air deck of 20%-30% is possible without noticeable loss of blast fragmentation.

    Figure 1 -- Source: Cleeton, J. (1987)

    Every meter reduction of explosives translates directly into quarry savings. Plus, better containment equals less secondary breakage and crusher output (See 12 Month Gold Crusher Study by University of Mines & Technology, Ghana).


    Reduction of oversized fragments in stemming area with VARISTEM® usage and with shorter stemming heights. Explosive gases work higher without risk of stemming ejection. Better blast containment with VARISTEM® over using stemming rock alone (see Study on 27% Fragmentation Improvement).