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Tunnels, subways, airport structures
serviceschemical grouting
Chemical Grouting
What is Chemical Grouting?
Chemical grouting is a trenchless soil and structure treatment method that uses engineered resins and gels to seal leaks, control groundwater, and strengthen surrounding soils. By injecting chemical grout into voids, joints, and fissures, the process creates a durable barrier that stabilizes underground structures and prevents long-term deterioration.
Problems Solved
- Stops groundwater inflow quickly
- Densifies or impermeabilizes soils
- Provides a trenchless repair option when excavation isn’t feasible
- Protects structures from erosion, voids, and water intrusion
Types of Grout Used
Acrylate Gels
- Ultra-low viscosity (1–3 cps) for micro-infiltration
- Penetrates fine soils and tight joints
- Hydrophilic—expands upon water contact
Single-Component Polyurethanes
- Expands to stop active leaks
- Bonds well to wet substrates
- Fast curing—ideal for emergencies
Urea-Silicates
- High strength and chemical resistance
- Effective for structural reinforcement in saturated zones
- Suitable for curtain walls and void stabilization
Benefits of Chemical Grouting
Chemical grouting provides more than a temporary fix. By sealing infiltration pathways and reinforcing surrounding soils, it offers durable performance in even the most challenging environments. The trenchless approach minimizes disruption, while proven grout formulations ensure reliable results that extend the service life of critical infrastructure.
Engineered Advantages That Deliver Long-Term Protection
- Stops active leaks, even under flowing water conditions
- Strengthens and stabilizes surrounding soils
- Non-destructive and trenchless installation
- Provides long-term durability and structural protection
Key Applications
Tunnel & Vault Waterproofing
Protects critical underground assets from water infiltration
Manhole & Pipe Joint Sealing
Restores watertight integrity of utility systems
Below-Grade Leak Repair
Seals cracks and prevents groundwater intrusion
Soil Stabilization Under Slabs
Strengthens subgrades and prevents settlement
Groundwater Cutoff
Creates barriers that block seepage and hydrostatic pressure
Annular Space Sealing
Fills gaps in liners and around penetrations
Industries We Serve
Chemical grouting is applied across multiple sectors to solve groundwater infiltration, soil instability, and structural leakage. From transportation and municipal systems to industrial facilities, marine environments, and energy infrastructure, these solutions provide lasting protection for critical assets in diverse operating conditions.
Municipal Systems
Municipal Systems
Manholes, stormwater systems, utilities
Industrial Facilities
Industrial Facilities
Vaults, tanks, process facilities
Marine & Coastal
Marine & Coastal
Bulkheads, seawalls, retaining structures
Energy & Utilities
Energy & Utilities
Power plants, pipelines, underground facilities
Water & Wastewater
Water & Wastewater
Treatment plants, sewer systems, pipelines
How Our Process Works
1
Investigation
Visual inspection, CCTV, and moisture mapping identify infiltration points
2
Planning
Grout type and sequencing selected based on defect type and site geology
3
Access
Small-diameter rods or packers placed with minimal disruption
4
Injection
Controlled flow rates, pressure, and volume deliver precise treatment
5
Monitoring
Injection pressures and material returns are tracked to ensure proper performance.
6
Validation
Water/air testing and material return confirm sealing effectiveness
Get Started with Expert Support
Phone
800-240-7868Follow Us
Have a project in mind or need more details about our services? Connect with our team today to discuss your challenges and learn how URETEK solutions can deliver lasting results.