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Conference Proceedings

Third International Symposium on Rock Fragmentation by Blasting, Brisbane, August 1990

Conference Proceedings

Third International Symposium on Rock Fragmentation by Blasting, Brisbane, August 1990

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Reduction of Costs and Environental Impacts in Quarry Rock Blasting

The operation of quarries for the production of crushed stone and aggregates, depends heavily on rock blasting efficiency, which usually represents a major share of total production costs. After investigating the causes of this situation, a series of technical aspects have been detected, and they are described for the purpose of contributing to the minimization of costs, which also reduces the effects of blasting on the environment. Utilization of empirical design methods, of inadequate explosive types, and of erroneous drilling pauems with respect to rock properties, are the main factors to be corrected, as a consequence of poor engineering criteria, with scarce use of computational methods and field instrumentation. Several concepts of blasting optimization are pointed out, and their application to industrial operations in a Portuguese limestone quarry indicated clear trends for the reduction of production costs, as well as some of the deleterious consequences of blasting on the environment.
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  • Reduction of Costs and Environental Impacts in Quarry Rock Blasting
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  • Published: 1990
  • PDF Size: 0.418 Mb.
  • Unique ID: P199005045

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