The Causes of Unstable Soil - A Brief Overview

GCS on Feb 22, 2019 10:00:00 AM
GCS Causes of Unstable Soil Overview - Banner
 
Unstable soil can be defined as soil that will not stay in place on its own, and therefore requires extra support. It should be noted that unstable soil can threaten the stability, security, and safety of infrastructure and can damage, degrade, and even destroy valuable structures, such as houses, buildings, bridges, and roads.
 
GCS Causes Unstable Soil Overview - BodyLet's look at the four main causes of unstable soil...
 

Erosion


Erosion refers to processes in which external elements (wind, water, etc.) remove soil or rock from a certain location and transport it to another location. There are a variety of different erosion types, including river and gull erosion, wind erosion, and erosion attributed to human activity. Erosion ultimately destabilizes soil and can lead to landslides and sinkholes.
 

Poor Compaction


One of the most common causes of unstable soil is poor compaction. In some cases, certain types of soil are simply very loose and subsequently not compact. The cause of this is typically an imbalance of mineral pieces, organic matter, air, and water. For example, a clay soil with very high moisture content will inevitably become instable, as it will be incredibly difficult to compact. Similarly, soils with high sand content will be difficult to compact.
 

Freeze/Thaw


Processes of freezing and thawing essentially accelerate erosion processes. Cold weather freezes moisture trapped in tiny cracks. When this water freezes, it expands, subsequently pushing on the rocks and breaking them into smaller pieces. As processes of freezing and thawing continue, rock and sediment are continually broken down.
 

Decomposition


When soils contain a high concentration of organic materials, such as topsoil and plant matter, it will decompose, subsequently causing it to become unstable. This is because organic materials rapidly change form and mass as they decompose in soil. In fact, up to 90 percent of organic material will disappear over the course of the decomposition process.
 

How GCS Can Help

 
Fortunately, stability can be restored to soil with ultra-low viscosity polyurethane resins. Foaming and permeation polyurethanes can mitigate the damage done by processes of erosion, decomposition, and freezing and thawing, as well as help to rectify compaction problems. When it comes to unstable soil, you can’t afford to take a risk. Stable soil is crucial to maintaining your valuable structures.
 

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Topics: Soil Stabilization, All Posts

Coastal Soil Stabilization

GCS on Feb 15, 2019 1:56:25 PM

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coastal-blogHigh winds, heavy rain, tidal changes and large waves can play havoc with your beaches, shorelines and seawalls. GCS can help. We use Alchemy-Spetec soil stabilization resins that can stop erosion of unstable soils and sand. We can stabilize soil in the areas behind seawalls suffering from erosion and settling. We can also lift slabs and raise structures that sink due to erosion.

Don’t wait for potential problems to become worse or serious. Let us offer you lasting solutions with powerful polymers and painless procedures that will give you rapid results! Providing you with peace of mind for your soil stabilization problems is our specialty. Call 678-337-8374 now!

Want more information on our soil stabilization services?

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Topics: All Posts, Soil Stabilization, Seawall Repair

Soil Stabilization for New Construction

GCS on Feb 13, 2019 5:11:31 PM

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soil-blogWe talk a lot about soil stabilization underneath existing structures, but what about new construction? Before construction can begin on any new structure, stable ground underneath is obviously an essential prerequisite.

Unstable soil can be defined as soil that will not stay in place on its own, and therefore requires extra support. It should be noted that unstable soil can threaten the stability, security, and safety of any potential new construction projects, such as buildings, bridges, and roads. There are a variety of factors that can cause unstable soil including erosion, poor compaction, freeze/thaw cycles and decomposition.

Soil can be stabilized with high strength polyurethane resins applied by skilled & experienced contractors. Once the bearing capacity of the soil has been increased, then the new construction can begin.

Want more information on GCS services?

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Topics: All Posts, Soil Stabilization

How We Prevent Polyurethane from Staining Your Concrete

GCS on Feb 4, 2019 5:15:36 PM

How We Prevent Polyurethane from Staining Your Concrete

How We Prevent Polyurethane from Staining Your ConcreteWe have pumped, shot, spilled, splashed, sprayed, poured and injected polyurethane foam into every imaginable type of concrete structure known to man. 99.9% of it has ended up where it was supposed to go.

But there are those rare occasions when a small amount may end up ON the concrete we are trying to fix. Luckily that's NOT a problem at all, because we use Spetec Surface Guard to prevent staining from polyurethane resins!

Spetec Surface Guard is a concentrated product that we mix with 3-5 parts water. It can be sprayed onto concrete, wood, metal, or plastic and creates a barrier layer that prevents polyurethane foam from sticking to and staining the surface.

Want more in-depth info on procedures and products?

 Download an Info-Packed GCS Services Brochure NOW!

Topics: All Posts, Slab Lifting, Soil Stabilization

Soil Grouting - Polyurethane vs. Water

GCS on Feb 1, 2019 4:01:52 PM

Soil Grouting - Polyurethane vs. Water

blog-14Not all two-component polyurethane lifting and stabilizing foams are specifically designed for wet environments.  In most situations when a contractor is injecting polyurethane foam into the ground underneath your structure, there is a high probability that the soil is going to be wet.  You need to be confident that the foam will react and retain the desired properties in these wet environments.  If the foam your contractor is using is not specifically designed for wet environments, then you may be getting cheated out of the best possible results.

All polyurethane foams are going to undergo a density change when introduced to water.  This is precisely because the isocyanate (A component) in polyurethane reacts faster with water than it reacts with the polyol (B component).  Some will undergo drastic changes and some minor changes.  It is important to feel confident that the foam your contractor is using will only undergo minor changes.  The density of the foam is very important because density correlates to foam strength, and you are relying on that strength to support your valuable structure.

All the Alchemy-Spetec lifting products we use are formulated to achieve minimum density changes when introduced to wet soil.

Want in-depth info on GCS services?

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Topics: All Posts, Slab Lifting, Soil Stabilization

Polyurethane Soil Stabilization Explained

GCS on Jan 14, 2019 5:14:19 PM

Unstable, eroded, or loose soil can result in settlement and damage. Soil can be stabilized with polyurethane. Watch this animation for a detailed explanation of the process in a variety of settings!

Unstable soil can be defined as soil that will not stay in place on its own, and therefore requires extra support. It should be noted that unstable soil can threaten the stability, security, and safety of infrastructure and can damage, degrade, and even destroy a number of structures, such as buildings, bridges, and roads. There are a variety of factors that can cause unstable soil including erosion, poor compaction, freeze/thaw cycles and decomposition.

Soil can be stabilized with high strength polyurethane foam. Once the bearing capacity of the soil has been increased with this process, then the structure can be lifted if necessary.

For a detailed explanation of the process in a variety of settings, watch this animation from our materials supplier Alchemy-Spetec... 


Want more information on GCS services?

Download an Info-Packed GCS Services Brochure NOW! 

Topics: All Posts, Soil Stabilization

Stabilizing a House with Polyurethane Foam

GCS on Dec 12, 2018 5:04:36 PM

Stabilizing a House with AP 475. Voids underneath a structure can result in damage. Installation of AP 475 foam secures structures and prevents damage.

Eroded soil and voids underneath a structure can result in settlement and damage to the structure. Ground Consolidation Services can fill these dangerous voids with high strength polyurethane foam that supports up to 14,000 pounds per square foot.

In this video from our polyurethane supplier Alchemy-Spetec, you'll see the back half of a residence resting on nothing but its frame and thin air. Installation of polyurethane foam secures the structure and prevents potentially catastrophic damage. 

Watch the video below...

Want more in-depth info on GCS slab stabilization and lifting services?

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Topics: All Posts, Soil Stabilization

Concrete Leveling to Prevent Trip Hazards & Litigation Risks - Part 2

GCS on Nov 28, 2018 10:00:00 AM

Concrete leveling can prevent trip hazards. Un-level concrete could - in a worst case scenario - result in a serious injury, death, and/or a lawsuit. Read more...

In the previous installment of this two-part series, we looked at common slab settlement danger zones, causes of sinking slabs, and the many risks of neglecting a known trip hazard. This time around we’ll review the two most common non-polyurethane repair options, and then explore the three most common types of polyurethane slab repairs.

Non-Polyurethane Repair Options

Concrete leveling can prevent trip hazards. Un-level concrete could - in a worst case scenario - result in a serious injury, death, and/or a lawsuit. Read more...

Aside from polyurethane repair, you have two other options: replacing the slab or mudjacking it with cement grout.  There are drawbacks for both.

Tear Out and Replace

Ripping out a slab and putting in a new one has three main disadvantages.  Namely, the process is…

  • Environmentally unfriendly (landfill bound?).
  • Messy (requiring heavy equipment and possibly damaging the surrounding area).
  • Time consuming.

Mudjack with Cement Grout

Concrete leveling can prevent trip hazards. Un-level concrete could - in a worst case scenario - result in a serious injury, death, and/or a lawsuit. Read more...

Mudjacking may be less expensive than replacement, but you are still facing a number of issues.

  • It’s still a messy process.
  • Cement grout washes out.
  • The grout is heavy and can sink over time.
  • The grout can crack and shrink over time.
  • Not an impermeable water tight solution.

Structural Polyurethane Repair

Polyurethane repair has distinct advantages over replacement and mudjacking.

  • Very clean installation process.
  • Lighter than cement mudjacking grout and won’t sink over time.
  • Will not shrink.
  • Closed cell structure makes it water impermeable.
  • Typically less expensive than replacement.
  • Less time consuming to apply than a mudjacking or replacement solution, and ready for traffic 45 minutes after application.

Trip hazard repair with polyurethane resin can require one or a combination of the following three approaches: lifting, soil stabilization and void fill.  Let’s take a close look at all three…

Lifting

Sunken concrete slabs can be lifted back into place with a-two component structural polymer foam designed to work in wet or dry conditions. The expansion force of the foam coupled with the pressure of a proportioner pump generate enough controlled force to lift virtually any structure back into position within 1/10” of the intended level.

Soil Stabilization

Unstable, eroded, or loose soil below infrastructure can result in settlement, damage to the structure above, and of course – trip hazards. Voids can be filled, soil consolidated, and water migration halted by permeating the soil with one of the ultra low viscosity polymer resins we use for stabilization. Once the bearing capacity of the soil has been increased with this process (soil has been stabilized), then the structure can be lifted with our slab lifting process.

Void Fill

Water erosion beneath slabs can cause voids to form that weaken the structural integrity and allow higher water pressure to develop. Filling these voids with rapidly expanding foam that is designed to react in the presence of water will return integrity to the structure and prevent trip hazards. We use polyurethane resins designed specifically for this type of application.

Want in-depth info on our concrete leveling services?

Download an Info-Packed GCS Services Brochure NOW! 

Topics: All Posts, Soil Stabilization, Slab Lifting, Void Fill

Repair Unlevel Atlanta Warehouse Slabs with Polyurethane Foam

GCS on Nov 21, 2018 12:04:49 PM

Repair unlevel Atlanta warehouse slabs with polyurethane foam. It is great for warehouse floors that rock or have begun to sink.

Repair unlevel Atlanta warehouse slabs with polyurethane foam. It is great for warehouse floors that rock or have begun to sink. Unstable soil often causes structural cracking, cave-ins, and sinkholes.  Fortunately, soil can be stabilized and water infiltration stopped with polyurethane resins. 

Once the soil has been consolidated and strengthened, any slabs or structures resting on it can be leveled if needed.

Voids beneath warehouse floors can also be filled with this high-strength polyurethane foam. This product is great for slabs that rock and warehouse floors that have begun to sink. 

With this extremely effective stabilization procedure, unlevel rocking slabs can be repaired at a rapid pace.  

Want in-depth info on how to repair unlevel warehouse slabs? 

 Download an Info-Packed GCS Services Brochure NOW!

Topics: All Posts, Slab Lifting, Soil Stabilization

Warehouse and Industrial Slab Repair in Atlanta

GCS on Nov 19, 2018 3:14:49 PM

How warehouse and industrial slab repair with polyurethane creates a safer environment for both property owners and employees. Learn more...

One of the hidden dangers a warehouse or industrial property owner and their employees can face is an unstable or sunken slab with a large void underneath.  The last thing anyone wants is injury and/or a lawsuit resulting from an un-repaired trip hazard or worse - a complete slab collapse.  Take a good long look at the photo below.  This occurred when a forklift carrying a heavy piece of equipment crossed a slab with an un-detected void underneath.  Luckily, no one was injured.

WE CAN PREVENT THE DISASTER DEPICTED IN THIS PHOTO... 

How warehouse and industrial slab repair with polyurethane creates a safer environment for both property owners and employees. Learn more...

This video below explains GCS soil and slab repair services.  Take a couple minutes to watch it and then give us a call at 678-337-8374.  

 

Want more info on GCS services?

Download an Info-Packed GCS Services Brochure NOW! 

Topics: Slab Lifting, Soil Stabilization, All Posts