Chemical Grouting Process
Soil instability can cause significant structural problems during and after the building process. Structures built on sand, soft ground, fractious rock, and other terrain types not naturally suited to tolerate heavy loads can suffer from cracking, sinking and structural integrity deterioration.
Chemical grouting is the introduction and permeation of chemical grout fluid into base soils to produce stone-like masses that are capable of carrying loads of the structures above. Sometimes called permeation grouting, this process:
- Improves soil strength
- Bolters soil rigidity
- Limits ground movement
- Reduces soil vibration
- Controls water flow
Our chemical grouting process has many advantages over other grouting methods, such as cement-based ones. Cementitious grouts are heavy, porous, dry unevenly, crack easier, wear faster and have minimal flexibility. Our highly trained technicians can easily inject chemical grout into spaces with limited access or where no structural connection to the foundation being underpinned is required. After injection, the soil will become more stable in a few minutes. The polyurethane material will cure into a strong, durable, and long-lasting replacement base material. This allows for minimal to zero work area shutdowns, avoidance of soil excavation, and our crews can work during off-peak, nighttime or when employees are not on the floor. This allows for minimal to zero work area shutdowns, avoidance of soil excavation, and our crews can work during off-peak, nighttime or when employees are not on the floor.
In order to ensure project success, a contractor must understand how to inject, how to design the injection patterns, and what to watch out for to ensure project success. If the pattern is wrong, the project goals will not be met. If the contractor is not stringent in how much material or volume they inject, they could cause damage or create higher costs than budgeted. If they don’t know what to watch for while they are injecting, they can over lift slabs leading to cracking or property damage.
Our chemical grouting process utilizes high-density structural polyurethane, which is injected into base soils through 3/4” metal rods. The polyurethane quickly travels throughout the aggregate and enlarges, which acts to:
- Bind soil media together
- Fill gaps
- Reduce permeability
- Stop soil compression
- Increase soil strength
- Mitigate inflow, infiltration, and leakage of water
EagleLIFT’s polyurethane foundation grouting services utilize a fast-acting, nondestructive and environmentally safe chemical grout. The polymer is neither chemically nor biologically reactive and will not decompose. Additional characteristics include:
- Expands up to 25 times its initial volume
- Unaffected by standing water
- Increases a soil’s weight-bearing capability
- Displaces trapped water
- Not compromised by wet conditions during or after installation
- Seals leaks and misaligned joints
- Not impacted by contamination, microbial corrosion and or high acid levels
- Minimal to zero work area shutdowns
POLYURETHANE GROUTING THROUGHOUT CALIFORNIA AND NEVADA
With more than 25 years of experience using polyurethane for concrete foundation lifting, soil stabilization, and structure rehabilitation, EagleLIFT is the top injection process provider throughout all of California and Nevada. We have obtained a Class A license and can provide a range of soil stabilization, foundation, and trenchless sewer repair engineering solutions to clients of all sizes. All projects our teams take on are expertly designed, and the soils they address and thoroughly studied. Ensure your soil is stable with support from EagleLIFT. For more information regarding our polyurethane foundation grouting services, give us a call.
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Download Free Foundation Repair Guide
Dealing with foundation problems can be stressful. Something that can help is being aware of the signs of foundation settlement and educating yourself on the basics of foundation repair technologies. This guide will show you the most common foundation problems and the repairs that are most likely to be recommended by foundation contractors.