Optimization of the rock blastings in opencast mines using hydromite emulsion explosives

In the current paper, measurement results of the detonation parameters for model emulsion explosives are presented, one of the matrices constituting a base for Hydromite 100 and 70; the work additionally details the results of the rock blastings, carried out by means of the above mentioned materials. The blastings were executed in the following opencast mines: Kamienna Góra, Kopalnia Granodiorytu Łazany II, Łagów V and Warta Cement Plant. The goal of the proceedings was to optimize the blast grid for specific plants.