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Concrete Injection Levelling Repair
Concrete injection levelling, also known as polyurethane resin injection or slab jacking, is a modern technique used to provide ground improvement and level correction to sunken or uneven concrete surfaces.
This process is commonly applied to factory and warehouse floors, driveways, transport yards and other concrete slabs that have settled over time due to soil movement, erosion, or poor compaction.
Unlike traditional methods such as mud jacking, concrete injection levelling uses lightweight polyurethane foam to fill voids beneath the slab, raising it back to its original level.
How Does Concrete Injection Levelling Work?
Inspection & Assessment:
- A professional assesses the condition of the sunken concrete and determines the extent of the settlement.
- The cause of the settlement, such as soil erosion or poor compaction, is identified to prevent future issues.
Drilling Small Injection Holes:
- Small holes are drilled into the affected concrete slab.
- These holes are strategically placed to allow even distribution of the lifting material.
Injection of Polyurethane Resin:
- A special polyurethane resin is injected through the holes.
- The resin expands beneath the slab, filling voids and compacting the soil while gently lifting the concrete back to its original level.
Sealing the Holes:
- Once the desired levelling is achieved, the injection holes are sealed with a concrete patch, leaving minimal visible signs of repair.
Immediately Trafficable:
Once the repair is carried out, the treated area can return to full use immediately.
Teretek Resin Injection
Advantages of Concrete Injection Levelling
Concrete injection levelling offers a wide range of advantages and benefits that make it an ideal solution for addressing uneven and sunken concrete.
Cost-Effective Solution
- Concrete injection levelling is significantly more affordable than full slab replacement.
- Resin injection is of a surgical nature and non-invasive. It reduces the need for extensive demolition and reconstruction.
Fast and Non-Disruptive Process
- The entire process can often be completed within a few hours, compared to days or weeks required for traditional repairs.
- Since polyurethane resin expands quickly, the concrete is ready for use immediately after the repair is carried out.
Lightweight and Durable Material
- Polyurethane foam is much lighter than traditional mud jacking materials (such as cement slurry), reducing the risk of further settlement.
Environmentally Inert
- Polyurethane Resin Injection minimises waste by preserving existing concrete rather than replacing it.
- The resin is environmentally inert and does not leach into the environment.
Minimal Aesthetic Impact
- The injection process requires only small holes that are barely noticeable once patched.
- Unlike full slab replacement, which leaves visible seams and colour mismatches, concrete injection levelling maintains the original look of the surface.
Applications of Concrete Injection Levelling
Concrete injection leveling is a versatile technique used in various residential, commercial, and industrial settings:
- Driveways and Sidewalks: Prevents trip hazards and improves curb appeal.
- Garage and Warehouse Floors: Ensures a level surface for safe equipment operation.
- Interior Concrete Floors: Restores stability in homes, offices, and commercial buildings.
- Municipal Infrastructure: Used for highways, bridges, and other public concrete structures.
While mudjacking is still a viable method, polyurethane injection leveling is increasingly preferred due to its durability, lightweight material, and faster curing time.
Factors Affecting the Cost of Concrete Injection Levelling
The cost of concrete injection levelling depends on several factors:
- Size and Extent of Repair: Larger areas with significant settlement require more material and labor, increasing costs.
- Accessibility: Hard-to-reach areas may require specialized equipment, impacting pricing.
- Severity of the Issue: Deeper voids and extensive soil instability may require additional foam, increasing costs.
- Local Market Rates: Prices can vary based on geographic location and contractor availability.
Mainmark Concrete Injection Levelling
Using Teretek Resin Injection
Concrete injection levelling is a highly effective, fast, and durable solution for repairing sunken concrete slabs. With its numerous benefits—including cost savings, minimal disruption, and long-lasting results—this method has become the preferred choice for homeowners, businesses, and municipalities.
By addressing the underlying soil issues and using advanced polyurethane foam, concrete injection levelling ensures stable, level surfaces that stand the test of time.
Contact Mainmark Ground Engineering for further information.
Get a FREE quote
Arrange a site assessment in 3 simple steps:
Step 1
Submit your enquiry using our online form. Include a brief message about the type of foundation issues you are experiencing.
Step 2
Our friendly customer service team will be in touch to schedule a site assessment that suits you.
Step 3
One of the Mainmark experts will visit your home or property, assess the damage, and ascertain the likely cause. They will establish the approach needed, creating a plan specific to the needs of your building and provide you with a detailed quote.
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Mainmark Ground Engineering Pty Ltd
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