About Epoxy Injection for Structural Cracks
Epoxy injection repairs structural cracks by filling them with high-strength epoxy resin that bonds the concrete and restores structural integrity. This technique addresses cracks in foundations, walls, columns, and slabs where maintaining structural performance is critical.
The injection process involves sealing the crack surface, installing injection ports, and pressure-injecting epoxy that penetrates the full crack depth. Properly executed, the repair can be stronger than the original concrete, fully restoring structural capacity.
Structural crack repair requires understanding why the crack occurred. If active movement continues, epoxy injection alone will not provide lasting repair. We assess crack causes and recommend appropriate solutions that address root problems.
Commercial applications include foundation crack repair, structural wall repairs, column repairs, and any situation where cracks affect structural performance or must be sealed against water infiltration.
What’s Included
- Crack assessment and cause evaluation
- Surface preparation and sealing
- Injection port installation
- Epoxy injection to refusal
- Port and surface paste removal
- Final finishing
- Documentation and reporting
Frequently Asked Questions
How strong is epoxy crack repair?
Quality structural epoxy achieves bond strengths exceeding concrete tensile strength. A properly repaired crack can be stronger than the surrounding concrete. The repair restores full structural continuity.
Can epoxy injection repair active cracks?
Epoxy injection works best for dormant cracks that are not actively moving. Active cracks require flexible sealants or addressing the cause of movement before injection. We assess crack activity before recommending repair methods.
How long does epoxy injection take to cure?
Standard epoxy cures in 24-72 hours depending on temperature and product. Fast-cure formulas are available for quicker return to service. We specify materials appropriate for project timing requirements.
Is epoxy injection appropriate for wet cracks?
Standard epoxy cannot cure in wet conditions. For wet or actively leaking cracks, we use polyurethane injection that cures in the presence of water. We assess moisture conditions and select appropriate materials.
What documentation do you provide for structural repairs?
We document crack conditions before repair, injection procedures, materials used, and results achieved. This documentation supports engineering review and becomes part of the structure's permanent record.