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Why Pressure Grouting is the sustainable solution...
Why push or twist piers are not the total solution to foundation repairs.
- Push or twist pier operators buy a franchise to place the piers and have to pay the franchise for the privilege of placing the piers.
- We have seen more settlement on push or twist piers because they think they are on firm soil, but they are only on a hard shelf and the pier fails.
- Push or twist piers or cables can rust (view image1, view image 2)
- Push or twist piers can create voids under the footing or floor slab once they life the structure that can trap water that can lead to additional settlement.
- Push or twist piers do not stabilize the soil as does Pressure Grouting.
Why pressure grouting is better than push or twist piers
- The reason for pressure grouting for soil stabilization is to improve the soil's load bearing value and to spread the load on the soil over a larger area by improving the strength of the soil's structure.
- Grout injection pipes are driven to a hard natural soil, injecting 3500psi grount at one foot intervals forming a 4' diameter pier under the footing isntead of trying to support the building on a 3" peice of pipe.
- The pressure grouting will not leave a void under the footing or floor slab.
- The pressure grouting is cleaner than trying to dig a hole to place a pier onthe footing or trying to put a huge hole in the floor slab to place a pier. We drill a one and a half inch whole in the floor slab.
- The pressure grouting will divert water from the settlement area. This is why we can pressure ground in running water on earthen dams.
We use Pressure Grouting for:
- Consolidating Loose Soils
- Stabilizing Poor Bearing Soil
- Raising or Stabillizing Settling Foundations and Floor Slabs
- Repairs to Sewers and Pipe Lines
- Stabilizing Around Present Pilings that are Settling or are Over Loaded
- Grouted Cutoff Walls
- Chemical Grout
- Mud Jacking
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