The Influence of Microstructured Charcoal Additive on ANFO’s Properties

Andrzej Biessikirski, Suzana Gotovac Atlagić, Mateusz Pytlik, Łukasz Kuterasiński, Michał Dworzak, Michał Twardosz, Dagmara Nowak-Senderowska and Bogna Daria Napruszewska
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Andrzej Biessikirski: Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
Suzana Gotovac Atlagić: Faculty of Natural Sciences and Mathematics, University of Banja Luka, Mladena Stojanovića 2, 78000 Banja Luka, Bosnia and Herzegovina
Mateusz Pytlik: Conformity Assessment Body, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland
Łukasz Kuterasiński: Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Kraków, Poland
Michał Dworzak: Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
Michał Twardosz: Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
Dagmara Nowak-Senderowska: Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
Bogna Daria Napruszewska: Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Kraków, Poland

Energies, 2021, vol. 14, issue 14, 1-19

Abstract: The verification of the blasting parameters of Ammonium Nitrate Fuel Oil (ANFO) with the addition of microstructured charcoal (MC) produced by destructive wood distillation was performed. Additional investigation of specific surface and pore distribution by the nitrogen adsorption of the two granulations of MC was also carried out. High-resolution scanning electron microscopy was used for morphology evaluation and revealed smoothening of the initially developed external surface of carbon with intensive milling. In addition, the analysis of the thermal properties of the studied samples (TG/DSC) indicated that the size of the microstructured charcoal additives influenced the decomposition temperature of the prepared materials. The explosives containing microstructured charcoal grains of −90 μm underwent decomposition at lower temperatures in comparison with those containing higher sizes of microstructure charcoal grains (−1.18 mm), for which the decomposition temperature reached 292 °C. The obtained results of blasting parameters compared to the results derived from thermodynamic simulation showed the non-ideal character of the explosives (much lower values of blasting parameters than in established thermodynamic models). It was indicated that higher velocities of detonations (VOD) were obtained for non-ideal explosives where finer MC grains were added. Blasting tests confirmed that the studied type of MC can be applied as an additive to the ANFO.

Keywords: ANFO; microstructure charcoal; explosives; blasting properties (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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