Research Article
Effects of Fine Gangue on Strength, Resistivity, and Microscopic Properties of Cemented Coal Gangue Backfill for Coal Mining
Table 1
Chemical composition and physical properties of the materials used.
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Notes: for measuring SiO2, samples were first burned at 800°C to remove organic matter and then measured in a NaOH solution at 650°C. All other oxides were measured from samples subject to sealed digestion in HF + HNO3 at 185°C. |