Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring

<div>Experimental equipment. (a) Dynamic rheometer (Anton Paar) and (b) Shimadzu AG-X250 electronic universal testing machine, acoustic emission measurement.</div>

Shock and Vibration

fig2

Figure 2

Figure 2: Fracture Characteristics of Polyurethane Grouting Materials Based on Acoustic Emission Monitoring 