30th International Conference on Lightning Protection - ICLPĪndini, D., Martin, Y., Gusmedi, H., 2016. Chemical Enhancement Materials for Grounding Purpose. Simulation and breakdown characteristics of china clay and silica sand for improved grounding system. Prototip Ground Enhancement Material (GEM) Berbahan Baku Na-Bentonit Karangnunggal - Tasikmalaya Sebagai Bahan Substitusi GEM Impor. Multi Blending Technology (MBT): mineral processing method for increasing added value of marginal reserve. Application of natural zeolites in the purification and separation of gases. The formula produces a resistivity value of 0.0124 Ω-m, which is stable with time and meets GEM requirements (ρ ≤ 0.20 Ω-m).Īckley, M.W., Rege, S.U., Saxena, H., 2003.
Based on experiments, the best formulation of GEM made from tuff is 65% activated vitric tuff, 27% activated charcoal, 6% NaCl, and 2% Cement Material Cellulose. With the vitric tuff formulation and additives, the resistivity reduction is above 99%. The results showed that moisture content, SiO2/Al2O3 ratio (quartz and feldspar mineral/albite), clay mineral, crystal quality (impurities), carbon, and salt were influenced by vitric tuff resistivity. The research method consisted of field observations and laboratory experiments (treatment with chemical-physical activation and formulation with additives). The primary purpose of this study was to determine the decrease in resistivity of vitric tuff in its development as a GEM. Vitric tuff, a pyroclastic rock, is composed of an aluminosilicate (phyllosilicate) mineral group developed as a grounding improvement material. GEM has a low resistivity, very effectively supporting lightning shock energy to earth. Grounding repair materials consist of conductive and superconductive materials, commonly known as Ground Enhancement Materials (GEM). Ground repair material is an essential part of the grounding system as a lightning rod to reduce the risk of lightning activity.
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