Experimental Study on the Influence of PVA Content on the Performance of Grouting Material in Deep Stope

Figure 1

Diagram of test equipment: (a) ULTRATEST ultrasonic tester; (b) SS-1.5 mortar penetration tester; (c) Vicat tester; (d) Meters CDT1205-2 flexural testing machine; (e) Shanghai Hualong WHY-2000 compression testing machine.

(a)

(b)

(c)

(d)

(e)