Recent studies and limited tests indicate favorable results utilizing high accuracy electornic detonator technology over conventional non-electric pyrotechnic systems. This study discusses the applicaiton of this technology using the Deveytronic programmable system in an on-going production basis. The study quantifies the performance as it relates to fragmentation, excavation, vibration and productivity in an eastern U.S. aggregate mining operation. In order to insure accurate data, tight field controls were adhered to during the drilling and blasting process as they related to blast design, bench preparation, pattern layout, drilling and blasthole loading. Following the blast the excavation and crushing procedures were studied to quantify any down stream advantages due to improvements in fragmentation. This study will help provide the industry with information as to the advantages of high accuracy electronic blasting systems over conventional pyrotecnic systems and show the resutls of an operation utilizing electornic detonator technology through their production season.
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