Chemical Grouting
Blocks infiltration paths and strengthens surrounding soils
solutionspipe joint sealing
Pipe Joint Sealing
What is Pipe Joint Sealing?
Pipe joint sealing restores watertight integrity in pipelines by closing leaks and blocking infiltration at pipe joints. Using trenchless polymer injection, joints are sealed internally and externally, preventing soil loss, groundwater intrusion, and structural failures without the need for excavation.
Problems Solved
- Groundwater infiltration through leaking joints
- Soil erosion and voids around pipelines
- Increased treatment costs from diluted waste water
- Structural misalignment in sewer and utility lines
- Costly failures from untreated infiltration and settlement
Types of Polymers Used
High-Density Polyurethane Foams
- Expands to densify and stabilize loose backfill soils
- Provides lightweight reinforcement without added soil pressure
- Cures rapidly to minimize operational disruption
Structural Polyurethane Resins
- Creates rigid reinforcement zones behind walls and utilities
- Transfers structural loads to stable ground layers
- Extends service life of supported structures
Hydro-Insensitive Polymers
- Expands and cures in wet or groundwater conditions
- Seals voids and prevents erosion in saturated soils
- Provides long-term durability in challenging sites
Benefits of Pipe Joint Sealing
Pipe joint sealing with polymer injection provides trenchless protection against infiltration, soil erosion, and joint failure. These solutions extend pipeline service life and reduce costly repairs.
Long-Term Watertight Protection for Pipelines
- Seals leaks and infiltration at pipeline joints
- Prevents voids and soil loss around utilities
- Provides trenchless repair without excavation
- Extends service life of sewer and utility systems
Key Applications
Sewer Pipelines
Stops infiltration and restores water tightness in mains
Water Pipelines
Seals joints in potable water and utility lines
Stormwater Drains
Blocks leaks in culverts and storm water systems
Industrial Pipelines
Restores performance in process and utility lines
Lateral Connections
Seals infiltration at tie-ins between mains and laterals
Utility Corridors
Protects pipelines beneath roads, rail, and urban infrastructure
Services
Pipe joint sealing is supported by these services:
Waterproofing & Leak Sealing
Waterproofing & Leak Sealing
Creates watertight barriers at joints
Void Filling
Void Filling
Eliminates soil cavities caused by leaking joints
Soil Stabilization
Soil Stabilization
Reinforces soils weakened by infiltration
Crack Repair
Crack Repair
Seals structural cracks that compromise pipeline integrity
Curtain Grouting
Curtain Grouting
Forms external watertight barriers to prevent groundwater intrusion around pipelines
How the Process Works
1
Investigation
Pipelines inspected for joint leaks and infiltration
2
Planning
Injection design tailored to joint size and soil conditions
3
Access
Small-diameter injection points installed near leaking joints
4
Injection
Polymers expand to seal joints and stabilize soils
5
Monitoring
Placement tracked in real time for reliable water tightness
6
Validation
Final inspection confirms restored pipeline performance
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