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servicesvoid filling
Void Filling
What is Void Filling?
Void filling is the process of restoring stability to soils and structures by filling underground cavities with expanding polymers. These voids, often caused by erosion, groundwater movement, or decaying utilities, can compromise foundations, pavements, and critical infrastructure if left untreated.
Problems It Solves
- Subsurface cavities creating loss of soil support
- Settlement or cracking in foundations, slabs, or pavements
- Washouts from leaking utilities or groundwater infiltration
- Sinkhole formation and erosion near critical assets
- Voids behind seawalls, culverts, and retaining walls
Types of Polymers Used
High-Density Polyurethane Foams
- Expands to fill voids and stabilize soils
- Provides lightweight reinforcement without soil overload
- Cures quickly to restore ground support
Structural Polyurethane Resins
- Creates rigid support beneath structures and pavements
- Restores uniform bearing capacity in weakened zones
- Provides long-term durability against future void formation
Hydro-Insensitive Polymers
- Expands and cures in wet or saturated soils
- Seals voids caused by groundwater migration
- Ensures performance in challenging subsurface conditions
Benefits of Void Filling
Void filling eliminates subsurface cavities that weaken soils and threaten infrastructure. This trenchless process restores support, reduces risk, and extends the service life of critical assets.
Restore Stability and Prevent Future Failures
- Fills voids to restore structural stability
- Prevents future erosion and soil loss
- Trenchless application with minimal disruption
- Provides durable, long-lasting protection for infrastructure
Key Applications
Foundations & Slabs
Restores support where voids have developed beneath structures
Roadways & Highways
Fills subsurface cavities to prevent settlement and pavement failure
Bridge Approaches
Eliminates voids that cause differential settlement at approach slabs
Culverts & Stormwater Systems
Seals voids around buried drainage structures to prevent washouts
Utility Corridors
Fills cavities caused by leaking water, sewer, or energy lines
Marine & Coastal Structures
Stabilizes soils and fills voids behind bulkheads, seawalls, and docks
Industries & Applications
Void filling is applied across industries where underground cavities threaten safety and performance. From roadways and bridges to utilities and marine structures, this solution provides long-term protection and reliable support.
Municipal Systems
Municipal Systems
Stormwater, utilities, and public works
Industrial Facilities
Industrial Facilities
Facilities, warehouses, and process areas
Commercial
Commercial
Developments, campuses, and retail spaces
Marine & Coastal
Marine & Coastal
Seawalls, docks, and waterfront assets
Energy & Utility
Energy & Utility
Pipelines, substations, and underground infrastructure
How Our Process Works
1
Investigation
Voids identified through inspection, testing, or subsurface scanning
2
Planning
Injection strategy developed for void size, soil type, and structure needs
3
Access
Small-diameter injection ports drilled at strategic locations
4
Injection
Expanding polymers fill voids and reinforce surrounding soils
5
Monitoring
Injection pressures and material placement tracked in real time
6
Validation
Final testing ensures voids are sealed and stability is restored
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