New Chemical Grouting Materials and Rapid Construction Technology for Inclined Shaft Penetrating Drift-Sand Layer in Coal Mine

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Category</td><td class="align_center">Material characteristics</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Density</td><td class="align_center">1.3 g/cm<sup>3</sup></td></tr><tr><td class="align_left">Viscosity (25°C)</td><td class="align_center">80∼100 MPa·s</td></tr><tr><td class="align_left">Point of flammability</td><td class="align_center">&gt;185°C</td></tr><tr><td class="align_left">Flame-retardant property</td><td class="align_center">MT113-1995 standard</td></tr><tr><td class="align_left">Response time</td><td class="align_center">2 min∼200 min</td></tr><tr><td class="align_left">Setting time</td><td class="align_center">10 min∼250 min</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Main characteristics of the chemical grouting material.</div>

Advances in Materials Science and Engineering

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Table 2

Table 2: New Chemical Grouting Materials and Rapid Construction Technology for Inclined Shaft Penetrating Drift-Sand Layer in Coal Mine 