Assume that the hole takes 9.25 cu ft of grout [ 260 litres] in this period.
The hole continues to take appreciable quantities of grout
SUMMARY OF APPLICATION SO FAR - at 1 hour, 45 minutes:
Permeability before grouting is more than 100 lugeons (high)
Water:cement ratio = 0.5:1. Pressure builds up to 25 psi [1.7 bars]
Total cement injected so far
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