Monitoring and Assessment of Cemented Paste Backfill Containing Coal Gangue and Fly Ash in an Underground Mine

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="11"><hr/></td></tr><tr class="thead"><td class="align_left">Classification</td><td class="align_center">Composition</td><td class="align_center">Loss</td><td class="align_center">SiO<sub>2</sub></td><td class="align_center">Fe<sub>2</sub>O<sub>3</sub></td><td class="align_center">Al<sub>2</sub>O<sub>3</sub></td><td class="align_center">CaO</td><td class="align_center">MgO</td><td class="align_center">TiO<sub>2</sub></td><td class="align_center">Na<sub>2</sub>O</td><td class="align_center">K<sub>2</sub>O</td></tr><tr><td class="thead-hr" colspan="11"><hr/></td></tr><tr><td class="align_left">Gangue</td><td class="align_center">Percentage</td><td class="align_center">17.8</td><td class="align_center">51.92</td><td class="align_center">3.87</td><td class="align_center">19.03</td><td class="align_center">1.0</td><td class="align_center">1.18</td><td class="align_center">0.75</td><td class="align_center">0.54</td><td class="align_center">1.47</td></tr><tr><td class="align_left">Fly ash</td><td class="align_center">Percentage</td><td class="align_center">10.33</td><td class="align_center">43.84</td><td class="align_center">27.40</td><td class="align_center">4.01</td><td class="align_center">12.13</td><td class="align_center">1.09</td><td class="align_center">—</td><td class="align_center">—</td><td class="align_center">—</td></tr><tr class="table-tr"><td colspan="11"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Chemical composition of coal gangue and fly ash.</div>

Advances in Materials Science and Engineering

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Table 1

Table 1: Monitoring and Assessment of Cemented Paste Backfill Containing Coal Gangue and Fly Ash in an Underground Mine 