Polyurethane Foam
Injection Process
Residential Project
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Polyurethane Foam Injection Procedure for Residential, Commercial and Industrial Projects.
Polyurethane Foam
Injection Process
Residential Project
Commercial Project
Industrial Project
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Concrete
Concrete remains the primary material used for driveways, sidewalks, garage floors, warehouse floors, patios, and highway bridges. While concrete has no equal, it is susceptible to cracking, settling, and shifting. Fortunately, the methods, products, and materials used to repair cracked, settled, and uneven concrete have evolved - significantly.
Concrete Settlement
Gone are the days when cracking and settling of concrete required complete removal and replacement, a messy, time consuming, and costly procedure. Today, polyurethane foam injection can address those issues with little to no mess and in a fraction of the time.
Polyurethane Foam
Polyurethane foam is a two-component, high-strength hydro-sensitive structural polymer that can be used to fill existing voids beneath concrete, thus providing a more substantial base and the proper support for the concrete. The polyurethane foam can also be used to lift settled sections of concrete slabs of residential and commercial spaces and stabilize shifting concrete floors in warehouse spaces. The material is lightweight but strong enough to support industrial weight as soon as 30 minutes after application!
Polyurethane Foam
Industrial Project
Commercial Project
Injection Process
Residential Project
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Polyurethane Foam
Injection Process
Residential Project
Commercial Project
Industrial Project
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Step 1: Drill
A series of holes are drilled through the concrete slabs. The holes are rarely larger 5/8 inch so you won’t even notice them.
Step 2: Inject
Using a specialized injection gun that is connected to a series of hoses the Polyurethane is injected into each hole until any existing voids have been filled and/or the desired lift has been reached. You can notice visible lift and leveling of your sunken slab within seconds.
Step 3: Sweep
Polyurethane foam travels the path of least resistance. So as the underlying voids are filled and the pressure builds, it’s inevitable that some foam will seep through some of the drilled holes. This is totally normal. The excess foam begins to solidify almost immediately, to where it can be easily scraped up and swept away.
Polyurethane Foam
Industrial Project
Commercial Project
Injection Process
Residential Project
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Polyurethane Foam
Injection Process
Residential Project
Commercial Project
Industrial Project
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Residential Polyurethane Foam Injection
Carolina Foundation Solutions performed the polyurethane foam injection procedure as a means of repairing a section of the concrete driveway in an attempt to lift the settled areas of the concrete slab.
Polyurethane Foam
Industrial Project
Commercial Project
Injection Process
Residential Project
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Polyurethane Foam
Injection Process
Residential Project
Commercial Project
Industrial Project
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Commercial Deep Polyurethane Foam Injection
A section of a newly constructed highway was showing signs of settlement which was due to uncompacted fill material below the compacted subgrade. CFS injected polyurethane foam into the uncompacted fill and stiffened the soils to provide the necessary support for the roadway above. First 5/8” holes were drilled into the roadway then pipe was drove down into the subgrade approximately 3 - 9 ft below grade. CFS injected a pre-determined amount of AP440 foam into the fill dirt at the base depth and then lifted the pipe in 3 ft increments and injected additional foam. The roadway was monitored during the injection process with lasers for any lifting. CFS injected approximately 4,000 lbs of polyurethane foam. This proved to be a significant cost savings compared to the option of removing the existing roadway and uncompacted material and replacing with new, compacted structural fill.
Polyurethane Foam
Industrial Project
Commercial Project
Injection Process
Residential Project
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Polyurethane Foam
Injection Process
Residential Project
Commercial Project
Industrial Project
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Industrial Polyurethane Foam Injection
Carolina Foundation Solutions performed a polyurethane foam procedure at a warehouse in Rock Hill, SC to prevent movement within the concrete slab floors. The movement within each section of the concrete floor was a result of concrete curling, where the edges of each section began to curl upward as the concrete cured. This curling resulted in voids beneath the bottom of the concrete along the edges of each section, causing a rocking motion within each section as forklifts traveled across the floor. CFS drilled a series of holes along the outer edges of each section of concrete. A high strength, two component, hyrdo-sensitive structural polymer foam was then injected to each hole. This polyurethane foam filled the existing voids beneath the concrete, stabilizing each section, and preventing any further movement. Approximately 2200 pounds of Alchemy Spetec AP440 polyurethane foam material was used to address
a total area of approximately 146,000 square feet.
Polyurethane Foam
Industrial Project
Commercial Project
Injection Process
Residential Project
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Polyurethane Foam
Injection Process
Residential Project
Commercial Project
Industrial Project
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Let CFS assist you in determining which system would be the most cost effective for your next project
Polyurethane Foam
Industrial Project
Commercial Project
Injection Process
Residential Project
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