Undersealing
Water intrusion and subgrade washouts create hidden hazards beneath commercial floors, roadways, and foundations. Undersealing stabilizes these structures by injecting advanced chemical grouts to fill the small voids below concrete slabs where water accumulates and seeps to the surface. This targeted approach restores structural integrity rapidly and cleanly, entirely bypassing the downtime and disruption of traditional cementitious methods.
Common Undersealing Applications
Warehouse Floor Undersealing | CJGrout 20SDB | SF5370
Commercial & Industrial Floors
Quickly stabilize settling warehouse floors, manufacturing facilities, and distribution centers without operational downtime.
Highway Pavement Undersealing | CJGrout 40NHL | SF815
Heavy Highway & Infrastructure
Underseal and level bridge approaches, active rail crossings, and concrete roadways to mitigate slab pumping and joint failure.
Grain Bin Floor Repair | CJGrout 20SDB/28FDL | SF95
Pipes, Box Culverts and Spillways
Stop active leaks and underseal voids beneath spillways, tanks, pipes and culverts.
Related Materials
Plurgal-Component Polyurethane (CJGrout®)
For structural undersealing and bulk void filling, CJGeo utilizes CJGrout®. These highly expansive, plural-component polyurethanes react without moisture to form rigid cellular plastics.
- High-Strength Support: Exerts controlled expansive force to fill voids, support the slab, and compact adjacent soils.
- Hydro-Insensitive: Specialized formulations repel water and can be installed directly into environments with active flow.
- Immediate Traffic: Reaches 95% cure capacity within 15 minutes, allowing normal operations and heavy traffic to resume almost instantly.
Prepolymer Chemical Grouts
- Targeted Leak Stopping: Prepolymer chemical grouts react directly with moisture to expand up to 30 times their original volume, sealing discrete cracks and joints.
- Controlled Repairs: Precise catalysts control the reaction profile in the field, matching set times to ambient temperatures, leak volumes, and specific soil characteristics.
The Chemical Grout Advantage
Zero Operational Downtime
Quick curing times allow facilities and roadways to remain open during and immediately after installation.
Minimally Invasive
Injected through penny-sized holes, eliminating the need for heavy excavation, demolition, or large drilling equipment.
Unmatched Cleanliness
Completely free of the dust, heavy equipment, and messy cleanup associated with traditional cementitious grouts.
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