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Ammonium nitrate used as fertilizer is classified, according to Orangebook, as a hazardous substance in Class 5 Division 1 (5.1), oxidizing substances. Although, under fire conditions, ammonium nitrate burns in certain situations, the transition from combustion to detonation can occur. Such accidents have occurred in several countries, with significant quantities, including in Romania. Such catastrophic scenarios can occur in the case of nitrogen-based chemical fertilizers, in which case the manufacturing recipe (...

The evaluation of the seismic action generated by blasting, aims to establish the connection between the levels of ground vibration with the parameters of the blasting and the characteristics of the geological environment related to the quarry. In order to assess the seismic effects on site of the mining / civil / industrial objectives within the quarry, the criterion of the oscillation speed of the soil particles was chosen, because it was considered to be the only reproducible parameter for the whole frequency r...