866-625-4550 724-625-0008 Case Study Shaft Grouting / Coal Mine / WVa Challenge Faced A contractor driving a mine shaft at a coal mine in West Virginia descended through a layer of water bearing broken shale. Prior to the installation of the concrete shaft liner all active water infiltration must be controlled. About the Project Due to the amount and force of the water infiltration we used our multi-purpose single component HyperFlex formulation pumped out of 55 gallon drums with a Graco Bulldog pump. Beginning at the top of the affected area and injecting in a pattern to ensure full coverage, we in

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