The first trenchless pipeline rehabilitation process was chemical grouting. When properly applied, it is still the best cure for infiltration of groundwater

How Does Chemical Grouting & Pipe Sealing Work?

Chemical grouting works best when the pipe to be repaired is still structurally sound. Over time pipes can sag, joints can become separated and cracks can develop allowing intrusion into the pipe. After first inspecting the pipe with robotic video camera technology if it’s determined the pipe is structurally sound, the pipe will be cleaned and prepared using inflatable plugs placed in the damaged areas of the pipe. Upon inflation, grout is then injected into the separated joints or cracks and the surrounding soil. This special polyurethane grout only takes about 25 minutes to densify, and expand into the cracks, voids, and adjacent soil, effectively sealing the pipe. Even in instances where it’s determined it best to re-line a section of pipe, chemical grouting will still be used prior to re-lining. This prevents any ground water from seeping into the pipe and getting between the pipe and the liner.

The Importance of Scheduled Maintenance and Inspection

Shenandoah understands that an ounce of prevention is worth a pound of cure. That’s why we offer our exclusive Inspection, Restoration and Maintenance program (IRM) designed to keep your system healthy and running by avoiding expensive surprises. If we uncover a problem, Shenandoah has the expertise to repair it quickly and effectively.