Crack injection in underground parking garage

Chemical Injection in Underground Parking Garage

Location: Burlington, ON
Sector: Infrastructure
Category: Chemical Grouting


A building and garage restoration contractor observed extensive cracks in the concrete and water infiltration through the foundation walls.

Working within the underground parking garage, 3/8 inch diameter holes, every 8 inches at a depth of 10 inches were drilled. Alternating holes were drilled on each side of the crack, at a 60 degree angle to intersect the crack at the mid-point of the foundation wall. Plastic packers were then installed into the drilled holes, and flushed with water/acid solution to rid debris from the holes and the crack itself.

Chemical grout was then injected into the drilled holes filling the fine cracks and forming a flexible foam barrier, sealing the crack, preventing further water discharge.

Chemical grout injection using Multiurethanes Flexible Resin and Flexible Accelerator, Multiurethanes Crack Flushing Agent, 3/8″ plastic packers and two chemical grout pumps were used to seal the cracks in the foundation wall.

The application eliminated the continued water seepage into the garage, allowing for the parking garage to be returned to service.

Chemical Grouting to Stop Water Seepage into Utility Chamber

Location: Guelph, ON
Sector: Utilities
Category: Chemical Grouting


Due to the high water table present in the region, an underground water main chamber encountered an unavoidable inflow of water through the precast segment joints.

Working within the chamber, a series of parallel holes were drilled directly into the joints voids at a depth of 4 inches between the precast segments. Packers were installed into the drilled holes and flushed with Water/Acid solution to rid debris from holes and the voids. Chemical grout was then injected into the joints, filling the void and creating a semi-rigid foam barrier.

Chemical grout injection using Multiurethanes Universal Resin, Universal Accelerator, 3/8″ plastic packers and two chemical grout pumps were used to seal the joints between the precast chamber segments. The technique eliminated the water leakage, allowing for the chamber to be returned to service.

Equipment Customization for Cement Grouting

Equipment Customization for Cement Grouting

Location: Mount Pleasant, NY
Sector: Utilities
Category: Cement Grouting, Chemical Grouting


A municipal water supply organization was constructing a large water treatment facility situated on the outskirts of New York City. Construction crews encountered a leaking bypass pipe at a depth of 400 feet below the surface between two adjacent deep water supply shafts.

Multiurethanes grouting specialists supported decommissioning operations undertaken by a deep dive contractor to fill the defective bypass pipe using cement grout.  In addition, they prepared customized electrical equipment for this underwater grouting project, including a diesel generator and an electrical control panel with variable frequency drives to operate colloidal mixer, agitator tanks, and progressive cavity pumps.

Cement Grouting for Drill Hole Abandonment Ontario

Cement Grouting for Drill Hole Abandonment

Location: Chapleau, ON
Sector: Mines
Category: Cement Grouting


We assisted a drilling contractor by providing technical expertise, grouting equipment and materials to complete a drill hole abandonment operation at a gold mine in Central Ontario.

The mining company required exploration drill holes to be fully cemented after completion of drilling to the required depth while minimizing loss of cement into the adjacent rock formations. Ground conditions included open faults and fractures that allowed drilling fluids to migrate between adjacent holes.

Our crew worked together with the contractor to efficiently apply the required grouting solution and minimize any negative impact on the environment.

leak sealing in underground chamber

Leak Sealing in an Underground Chamber

Location: Toronto, ON
Sector: Utilities
Category: Chemical Grouting, Crack Injection


A utility contractor needed a permanent solution to fix an underground chamber that was prone to repeated flooding through leaking pipe penetrations.

Multiurethanes’ technicians used chemical grout to fill the annular space around the pipe penetration and fix the source of the water inflows.