Pressure Grout
Pressure grouting is a type of grouting done by injecting grout into the ground “under pressure”. A more accurate name for this commonly used term is permeation grouting.
How does pressure grouting work?
Grout is injected into the ground using either hand drills and a pump or a special piece of drilling machinery. In either case, the first step is to drill into the ground at the correct point to inject the pressurized grout into the injection site under such pressure that it is forced into the cavities in the ground that may be causing shifting or collapse or simply undesirable water movement. By filling in the proper area, the ground is either stabilized, or through proper placement “curtained” off from ground water flow.
This type of pressurized grouting can be done with either a cement mixture or a chemical grout which may have its own special applications. The choice typically depends on whether the application is designed to control moisture flow or just ground stabilization.
What should I keep in mind when considering pressure grouting?
Pressure grouting can be a tricky business. Considerations like what injection method makes the most sense, how best to isolate the proper area for the application, and which of the hundreds of possible material options make sense can be overwhelming and a wrong guess means money spent on a solution that may not work.
That’s why you need a contractor with the experience and expertise to make sure your project works right the first time and that your pressure grouting will do the job intended, without expensive patch work and without affecting your foundation. Fenton Shotcrete / Gunite Division is your trusted partner with the proper equipment, engineering know-how and real-life experience to get it done right.