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Cemented coal gangue-fly ash backfill (CGFB) mixtures are utilized as the filling materials for backfilling the underground openings in coal mines, and the freshly prepared CGFB slurries are commonly transported into the gobs through a pipeline. Thus the pipeline transportation of the CGFB slurry becomes one of the most important issues. With the help of a pipe loop system built in laboratory, this...
Cemented coal gangue–fly ash (CGF) mixtures are made by mixing cement, coal gangue, fly ash and water, and the CGFs are commonly used as the backfill materials for filling underground voids in coal mines. Generally, pipeline slurry transportation system is constructed to deliver the CGF into the underground, and pressure drop is one of the most significant technical indicators needs to be considered...
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