Development of Coal Mine Filling Paste with Certain Early Strength and Its Flow Characteristics

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Name</td><td class="align_center" colspan="8">Chemical composition/%</td></tr><tr class="thead"><td class="align_center">CaO</td><td class="align_center">Al<sub>2</sub>O<sub>3</sub></td><td class="align_center">Fe<sub>2</sub>O<sub>3</sub></td><td class="align_center">SO<sub>3</sub></td><td class="align_center">SiO<sub>2</sub></td><td class="align_center">MgO</td><td class="align_center">Na<sub>2</sub>O</td><td class="align_center">Ignition loss</td></tr><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr><td class="align_left">Gypsum</td><td class="align_center">38.15</td><td class="align_center">3.18</td><td class="align_center">0.32</td><td class="align_center">44.86</td><td class="align_center">1.73</td><td class="align_center">2.57</td><td class="align_center">0.08</td><td class="align_center">8.38</td></tr><tr class="table-tr"><td colspan="9"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The chemical composition of the gypsum.</div>

Geofluids

tab2

Table 2

Table 2: Development of Coal Mine Filling Paste with Certain Early Strength and Its Flow Characteristics 