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Over 80 years of experience in structural stabilization and foundation work, including engineering and contractor services related to drilling and grouting, anchor and tieback systems, installation of instrumentation, and cellular concrete and fly ash placement. |
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Pressure GroutingWhat is Pressure Grouting Pressure grouting is the process of raising sunken or deformed foundations by the use of hydraulic pressure, and then filling in the void created with concrete grout. Pressure grouting is generally used for large voids beneath the foundation surface. How Pressure Grouting Works The first step in pressure grouting is to determine the locations of the desired holes to be drilled that will best stabilize the foundation. Once the desired location for the holes has been determined, the drilling is done. Concrete grout is then pumped into the holes at high pressure until the concrete comes into contact with the existing foundation. While the concrete is pumped into the drilled holes, the hydraulic lifts maintain an even surface. As soon as the void beneath the foundation surface has been filled properly, the holes are refilled. When to Use Pressure Grouting Pressure grouting should be used to stabilize a large surface area. |