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
  • Reduces soil vibration
  • Controls water flow
  • Limits ground movement

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.

PROCESS

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

BENEFITS

Remoku'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
  • Not impacted by contamination, microbial corrosion and or high acid levels
  • Seals leaks and misaligned joints
  • Minimal to zero work area shutdowns

Chemical Grouting for Soil Stabilization

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.

What is Chemical Grouting?

Chemical grouting for soil stabilization is a form of permeation grouting where chemical grout fluid into base soils produces stone-like masses that are capable of carrying loads of the structures above. Chemical grouting 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 flex.

Chemical grouting helps to:

  • Improves soil strength
  • Bolters soil rigidity
  • Reduces soil vibration
  • Controls water flow
  • Limits ground movement