ROCKGROUT- SIMULATOR- by A.C.Houlsby. Easy hole 1-00 hours to 1-15 hours. Hole A

The rate of injection has slowed appreciably. Fresh grout is having difficulty pushing earlier grout along.

SUMMARY OF APPLICATION SO FAR - at 0115 hours
Water:cement ratio = 2:1. Pressure = 25 psi [2 bar]
Total cement injected so far:

0.81 bags in the first 15 minutes

1.45 bags in the second 15 minutes

1.61 in the third

1.53 in the fourth

1.13 in the fifth (in 2.8 cu ft [75 litres] of grout)

= 6.53 bags total

Now what should we do next? The choice is from one of the following: