Y ear: Technology: 1997 Hot Bitumen Grouting In December of 1998, Geo-Foundations concluded the seventh phase of hot bitumen grouting at a very challenging inflow reduction project at a limestone aggregate quarry in West Virginia. Before commencement of grouting work in late 1997, the underground water flow from a nearby river into the quarry was estimated to be as great as 2,800 L/sec (45,000 USGPM). Upon conclusion of the project, the

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