Geotechnical Applications


Below are just a few examples of how SPF can be used for non-insulation applications.  To see similar applications of SPF, see our Specialty Applications award winners from SPFA's National Industry Excellence Awards.  

Concrete Lifting and Stabilization

Soil Stabilization
Underground Pipeline Construction

Marine Flotation
Humane Animal Exclusion
Waste Encapsulation



Concrete Lifting and Stabilization              
  • Expanding structural foam Leveling – 5/8” dia. holes drilled into slab and liquid polyurethane foam is injected and expands to raise and level slab.
  • Smaller holes, clean installation and resistance to future erosion make SPF a superior solution.


                      




Watch this video showing how SPF can be injected beneath a damaged concrete sidewalk to eliminate a dangerous trip hazard.




 
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Soil Stabilization                     

Methods of Soil Stabilization: 
  • Compaction – tamping and compression for predominantly horizontal surfaces
  • Additives – binders including cements and other inorganic reactive materials, as well as organic adhesives mixed into soil; useful where mixing is possible
  • Trenching – Use of temporary walls for narrow trenches
  • Mechanical – Use of netting and coverings
SPF provides superior mechnical soil stabilization over a wide range of materials, slopes and geometries

                       

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Underground Pipeline Construction
  • Stabilize piping until backfill is complete.
  • Dramatically reduces rainwater erosion during construction
  • Sandbags  – Time consuming to install
  • SPF – provides support pads and trench blocks and can be used to cover and protect pipe from rock damage during backfill
                      

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Marine Flotation
  • Closed-cell SPF formulated to meet USCG floatation requirements
  • Durable flotation for vessels, pontoons and buoys\
  • Application below applied SPF to interior surface of 40ft long marine buoy (read more)

                       

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Humane Animal Exclusion
  • A colony of a protected species of bat needed to be humanely relocated to prolong the service life of highway bridges.  
  • SPF installed in between deck gaps above pier cap and wing wall of several bridges  (read more)
                       

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Waste Encapsulation
  • A SPF formulation has been developed to inject inside and spray onto radioactive equipment
  • High-density (6 lb/ft3) SPF with high compressive strength has been developed for this application
  • SPF may be covered with a polyurea coating to provide additional water resistance needed for burial (read more)

                       

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