Excessive Rain Creates Dangerous Voids Under Slabs & Structures

GCS on Apr 19, 2019 4:38:06 PM

Excessive Rain Creates Dangerous Voids Under Slabs & Structures

Excessive Rain Creates Dangerous Voids Under Slabs & StructuresThe Atlanta area, where GCS is headquartered, has seen record rainfall in the last 6 months.  Excessive rain can often lead to soil washout underneath slabs and structures.  The voids created by soil washout can lead to sinking or, in some cases, dangerous collapse of the slab or even the structure itself.

Properties with healthy and adequate drainage systems (French drains, catch basins, etc) are the least likely to be affected by heavy rainfall.  However, clogged drainage systems, improperly designed systems, or in the worst case - properties with NO drainage system, all pose a significant risk during periods of excessive rain.  If you have any doubts about your drainage system, contact GCS at 678-337-8374 and ask about our soil testing & imaging offerings so we can look for dangerous voids.

If we find significant voids, we can fill them with high strength hydrophobic polyurethane foam.  Hydrophobic foam pushes water out of the void and cures into place with a density similar to crystalline bedrock.  We can also use polyurethane foam to lift your slab or structure back into place if it has already begun to sink.

If your soil problems are caused by faulty or non-existent drainage, you will still have to correct that issue to prevent future instances of soil washout in other areas on your property.  But the areas we repair should be fine, as the cured polyurethane we use is extremely durable is not eroded by rainwater.

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

Top Three GCS Blog Posts

GCS on Apr 18, 2019 4:04:44 PM

Filling Voids with Polyurethane Foam in Atlanta Soil Stabilization in the Atlanta Area Deep Soil Lift Under Driveway and Garage in Atlanta

Filling Voids with Polyurethane Foam in Atlanta Soil Stabilization in the Atlanta Area Deep Soil Lift Under Driveway and Garage in AtlantaAs of today, our top three blog posts also happen to represent a good overview of our services:

Filling Voids with Polyurethane Foam in Atlanta

There are many areas in which soil voids in and around structures may present a danger to the building and/or the people inhabiting the space. Sometimes these voids aren't even noticed until damage has been done to the structure.  For example, a slab sinks after soil beneath it erodes away and forms a void.  Or a crack appears in a wall because the foundation is sinking due to voids in the soil that was once supporting it.  Pool decks can crack and large sections can sink due to voids appearing underneath.  This can cause a dangerous trip hazard for people using the pool.  Rocking slabs in a warehouse or factory floor can also be a sign of voids underneath. In all these cases, safety can be returned to the structures...

Click here to read more!

Soil Stabilization in the Atlanta Area

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.

Click here to read more!

Deep Soil Lift Under Driveway and Garage in Atlanta

GCS recently performed  a deep soil lifting job for a homeowner in the Decatur area.  The homeowner noticed separation between the brick veneer on their garage and the surface of their driveway.  In addition, the garage door was not closing completely due to a settled driveway slab. The GCS crew performed soil testing which revealed deep soil instability.  The top 20 feet or so of the soil beneath the garage and driveway turned out to be unstable.  This particular problem called for the Deep Lift process.

Click here to read more!

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Topics: All Posts, Soil Stabilization, Void Fill, Deep Lift

Lifting Slabs, Stabilizing Soil, Filling Voids & More...

GCS on Apr 15, 2019 4:11:18 PM

Lifting Slabs, Stabilizing Soil, Filling Voids & More

Lifting Slabs, Stabilizing Soil, Filling Voids & MoreGround Consolidation Services lifts slabs, stabilizes soil, and fills voids with efficient and durable polyurethane resin. Prior to the soil repair process, GCS uses the Deep Look GPR system to reveal the full extent of sub-surface problems endangering your slab or structure.

Sinking slabs, unstable soil, and underground voids can eventually cause serious injury, costly litigation, and even death. GCS takes these issues very seriously. We, therefore, employ only seasoned experts with decades of experience using the latest in state-of-the-art technology.

Slab Lifting

Sunken slabs or structures create trip hazards, liability risks and are often a sign of further damage to come if the problem is left unaddressed. Fortunately, they can be leveled with high strength polyurethane resin. In optimal conditions, slabs and structures can often be lifted to within 1/8” of their original level. Polyurethane slab lifting is much more efficient and a lot less expensive than demolishing and replacing the slab or structure.

Common structures lifted include:

  • Driveways
  • Patios
  • Garage Floors
  • Pool Decks
  • Stoops
  • Steps

Soil Stabilization

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.

Filling Voids & Deep Lifting

Undetected voids are a silent threat that can cause slabs and structures to sink or collapse without warning. Neglect can result in serious injury, litigation and even death. GCS can protect your property and assets from these possibilities with the latest void detection and repair technologies. When required, slabs and structures can be lifted from deep within the soil.

Ground Penetrating Radar & Soil Testing

The Deep Look wireless ground penetrating radar system uses a patent pending unique triple frequency antenna design to create the most accurate image possible of the area beneath your valuable structures. Conventional single frequency antenna GPR systems cannot deliver the same level of clarity. Ground Consolidation Services will use the Deep Look GPR to take remove all uncertainty and take the guesswork out of the diagnostic process. A crystal clear understanding of the problem provides the best foundation for accurate, durable and lasting repairs.

GCS also has tools for probing the ground's soil density up to 40 feet deep.  Used separately or in combination with the Deep LookGPR system, the soil probing process provides additional valuable information about the conditions of the ground you depend on to support your valuable structures.

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Topics: Slab Lifting, All Posts, Soil Stabilization, Void Fill, Deep Lift, Soil Testing

Four Advantages of Lifting vs Replacement

GCS on Apr 12, 2019 1:18:09 PM

Four Advantages of Lifting vs Replacement

Four Advantages of Lifting vs ReplacementOne of the main alternatives to lifting a sunken slab is tearing out your old concrete and replacing it.  If your slab is still intact for the most part, it can usually be lifted back into place with polyurethane foam.  If you have a choice between concrete leveling and complete replacement, please consider the following points... 

No Excavation

Unlike the disruptive process of tearing out and replacing a slab, polyurethane slab lifting does not require excavation.  No one will have to dig up your drive way and get dirt all over your yard.  Instead, a friendly and professional GCS crew will inject the resin through your existing slab using holes half the size of a dime.  The concrete will be leveled and the small holes will be plugged with either a non-shrink cement grout, durable epoxy or a high strength polymer cement.

Clean & Environmentally Friendly

The main lifting foams we use, Alchemy-Spetec's AP Lift 430 and AP Lift 475, are NSF certified safe for contact with drinking water after they cure.  With that high level of safety certification, you don't have to worry about the long term environmental impact.  Meanwhile, what happens to torn out concrete?  Very often, it ends up in landfills.

No Heavy Equipment Required

Slab lifting crews are like a small SWAT team: focused, efficient and precise.  There will be no need for heavy equipment on the job, tearing up your yard or making loud noises that disturb your family and/or your neighbors.  Instead, you would have a small truck parked near the slab and a small crew running hoses out of the truck to the slab surface where they are pumping the foam. 

No Permitting Required in Most Cases

One last thing to keep in mind: new construction often requires permitting.  Don't want to spend hours down at your local permitting office dealing with the bureaucracy?  You most likely won't have to if you just have the slab lifted instead.

Call GCS today at 678-337-8374 for a free estimate!

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Topics: Slab Lifting, All Posts, NSF Certification

Undetected Voids Can Lead to Catastrophic Slab Failure

GCS on Apr 11, 2019 11:00:06 AM
Undetected Voids Can Lead to Catastrophic Slab Failure
 
Undetected Voids Can Lead to Catastrophic Slab Failure (1)See the photo included in today's blog graphic? Take a close look. You do not want this happening to your slab. Injury and litigation risks are a very real possibility for property owners who neglect inspection of the soil beneath their slabs.
 
We've mentioned this before in previous blog posts, but it's worth repeating:
 
Undetected voids are a silent threat that can cause slabs and structures to sink or collapse without warning. Even if your slabs are level, you may still want to get the soil underneath checked out. Unstable soil eventually 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 are safe and sound.
 
GCS can protect your property and assets from these hidden threats with ground penetrating radar inspections and durable, high strength void fill foam. The Deep Look wireless ground penetrating radar system uses a patent pending unique triple frequency antenna design to create the most accurate image possible of the area beneath your valuable structures.  Conventional single frequency antenna GPR systems cannot deliver the same level of clarity.  Ground Consolidation Services will use the Deep Look GPR to take remove all uncertainty and take the guesswork out of the diagnostic process.  A crystal clear understanding of the problem provides the best foundation for accurate, durable and lasting repairs.
 

Want more info on GCS services?

 
Download an Info-Packed GCS Services Brochure NOW!

Topics: Soil Stabilization, Void Fill, Soil Testing

Ground Penetrating Radar and Void Fill Underneath a Gymnasium in Georgia

GCS on Apr 9, 2019 10:08:23 AM

Ground Penetrating Radar and Void Fill Underneath a Gymnasium in Georgia

Ground Penetrating Radar and Void Fill Underneath a Gymnasium in GeorgiaNot too long ago, we were contacted about a slab issue at a gymnasium in a children’s home in north Georgia.  The slab in the center of the gymnasium was unstable and rocking back and forth whenever someone walked on it. 

We scanned the soil beneath the slab with the Deep Look Ground Penetrating Radar.  The scans revealed large voids underneath the slab.  To stabilize and level the slab, we used Alchemy-Spetec's AP Lift 430 polyurethane foam.  The whole project only took half a day to complete.

The slab was back in use 30 minutes after the job was done.  The administrators at the children's home, needless to say, were very happy.

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Topics: Slab Lifting, All Posts, Soil Stabilization, Void Fill, Deep Lift, Soil Testing

Void Fill at a Football Stadium

GCS on Apr 5, 2019 3:06:51 PM

Void Fill at a Football Stadium

Void Fill at a Football StadiumThere's no sport more popular in the south than college football (apologies to the NFL but it's true). We recently got a call to do a job at a major university football stadium in the state of Georgia. There were numerous soil voids in and around the stadium. 

The property managers discovered the voids and were smart enough to get the issue repaired ASAP. It's important not to wait too long once you discover voids in the soil around your property. Preventative void filling and stabilization is a key component of proper soil management in and around your valuable structures. It can save you a lot of money in future slab lifting bills!
 
Due to the size and scope of this vast structure, we spent three days total working on this project. The property managers were very happy to have the work done in such an efficient and thorough manner.
 

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Topics: All Posts, Soil Stabilization, Void Fill

Repairing Trip Hazards at an Atlanta School

GCS on Apr 4, 2019 10:26:31 AM

Repairing Trip Hazards at an Atlanta School

Repairing Trip Hazards at an Atlanta SchoolSunken Slabs Causing a Trip Hazard

We were recently contacted by a school in a nice Atlanta suburb. They were having issues with trip hazards on walkways throughout their campus due to sunken slabs. This issue made the school vulnerable to lawsuits, and more importantly, put the students and faculty at risk for injury.

Concrete Leveling with Polyurethane

We used high-strength polyurethane foam, and on some slabs a mechanical jacking system as well, to level all of these dangerous liability/injury risks.  It took us about two days to repair all the trip hazards on campus.

Do you have any similar issues on your property? Contact us at 678-337-8374 for a free repair estimate today!

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Topics: Slab Lifting, All Posts

Soil Stabilization in the Atlanta Area

GCS on Apr 1, 2019 2:28:56 PM

banner-Soil Stabilization in the Atlanta Area

blog- Soil Stabilization in the Atlanta AreaThe Problem

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.

The Causes

There are a variety of factors that can cause unstable soil including erosion, poor compaction, freeze/thaw cycles and decomposition. For more on the causes of unstable soil, see this multi-part blog series:

The Causes of Unstable Soil - A Brief Overview
The Causes of Unstable Soil - Erosion
The Causes of Unstable Soil - Poor Compaction
The Causes of Unstable Soil - Freezing and Thawing
The Causes of Unstable Soil - Decomposition

The Solution

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. Contact GCS today for a free estimate!

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Topics: All Posts, Soil Stabilization

Filling Voids with Polyurethane Foam in Atlanta

GCS on Mar 29, 2019 4:20:40 PM

Filling Voids with Polyurethane Foam in Atlanta

FILLING VOIDS WITH POLYURETHANE FOAM IN ATLANTA- blog (1)There are many areas in which soil voids in and around structures may present a danger to the building and/or the people inhabiting the space. 

Voids Caused by Soil Erosion

Sometimes these voids aren't even noticed until damage has been done to the structure.  For example, a slab sinks after soil beneath it erodes away and forms a void.  Or a crack appears in a wall because the foundation is sinking due to voids in the soil that was once supporting it.  Pool decks can crack and large sections can sink due to voids appearing underneath.  This can cause a dangerous trip hazard for people using the pool.  Rocking slabs in a warehouse or factory floor can also be a sign of voids underneath. In all these cases, safety can be returned to the structures by filling the voids with high-strength polyurethane foam (and then lifting the slab or structure if needed).
 

Voids Caused by Other Factors 

Soil erosion isn't the only cause of voids that need to be filled with polyurethane. There have been cases in which floors have been in danger of collapsing due to design issues and the safest solution was to fill the crawl space void with polyurethane foam.  Sometimes contracters dig trash pits on new construction sites and fill them with debris left over from the building process.  Later on, the trash in the soil decomposes and voids appear.  Polyurethane void fill can also be an excellent solution for filling/stabilizing abandoned pipes. 
 

Preventative Void Filling Can Save You Money!

You may even want to get your property checked by GCS for voids regardless of any danger signs.  We have advanced soil testing methods for just that purpose.  Filling voids BEFORE any damage occurs can save you a lot of money!
 

Want more info on GCS services?

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Topics: Slab Lifting, All Posts, Void Fill