Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Factors</td><td class="align_center">Polyether polyols a : b</td><td class="align_center">Catalysts A33</td><td class="align_center">Surfactants BL-8468</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">R</td><td class="align_center">4.269</td><td class="align_center">2.978</td><td class="align_center">1.898</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Range analysis of compressive strength.</div>

Shock and Vibration

tab4

Table 4

Table 4: Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring 