Fixing Concrete Voids Before They Cause Massive Damage

raise the garage floor

Perhaps you are looking to raise the garage floor. Or maybe you just suspect that there is trouble around the corner with your concrete driveway. Regardless what type of concrete raising or concrete service you are looking to perform, it is important to know how to recognize when you have a potential void in your concrete that would require filling.

What is a Concrete Void?

The first thing to understand is that voids in concrete are not visible. Unlike traditional crack repair (which is very visible), a void in the concrete can build up over time, eventually causing massive damage to the surface of the concrete, requiring large repairs. One of the reasons voids are not detectable by surface damage at first is that concrete is very strong. Average concrete can withstand about 3000 psi (pounds per square inch), and some concrete has a strength of over 20,000 psi. Because of this, the concrete will withstand enormous amounts of pressure and stress, until eventually the entire slab just cracks. When it does crack, the crack is usually massive.

The most high-tech solution is to use a GPR, or ground penetrating radar. GPRs are used by contractors to detect voids or holes under a concrete slab. If you are looking to raise the garage floor, it could be because you have a void in your concrete. Garage floor voids are difficult to detect without a GPR. Without a GPR, you might be able to detect a void by driving into your garage and listening to see if you can hear a shallow or hollow sound as you drive over the concrete. Sometimes there will also be tiny cracks throughout the concrete, or sometimes you will be able to detect a shift or tremor in the concrete. All of these are signs that you should look to raise the garage floor and fill the void.

How to Fill Concrete Voids

Filling concrete voids can be tricky. Because the void typically isn’t accessible through a visible crack (yet), there are only a couple of options. For small slabs, such as a sidewalk, it is possible to pack under the slab with gravel or some other material to keep the void from damaging the concrete. For larger slabs, such as a patio or garage, this isn’t usually an option.

One of the best methods for large slabs is to use some sort of expanding polymer substance, such as Polyurethane. Polyurethane can travel several feet through openings on the side of your slab to find and fill the voids underneath. This can sometimes be enough to prevent any further damage to the slab, even if you are looking to raise the garage floor.

When to Hire a Professional

Concrete can be expensive, and so is fixing it. Sometimes, because of the nature of a slab (especially in a garage), it can be difficult to access places where you can easily fill a void using Polyurethane or another expanding substance. Even if you want to raise the garage floor, you will need to fill the voids underneath in order to ensure good concrete strength and durability. There are plenty of options for slab jacking and soil cement stabilization that can be done professionally to ensure that your concrete is secure and solid for years to come.

Before you sell – Fix the foundation, before the inspector fixes your pocket book!

pressure grouting contractors

Are you getting ready to put your home on the market, but worried about what they might find during the foundation inspection? Potential home buyers want to make sure that they are buying a property that is built on a strong and lasting foundation. If you know that your foundation has structural or cosmetic damage, now is the time to take action and hire pressure grouting contractors.

Pressure grouting contractors can maintain or improve your home’s value by repairing foundation issues that are small or large. Pressure grouting is a shoring method that fills, solidifies and lifts target areas in the soil beneath your home.

This concrete raising process improves the load bearing capacity of your foundation. It will lift up and level out any uneven or sunken concrete slabs. The soil cement stabilization process protects your foundation against future problems from shifting or moving earth.

Concrete raising is not a new process. Originally called slabjacking, this minimally evasive technique has been used for almost 100 years. In addition to leveling your foundation. it can be used to fill concrete voids in driveways, for crack repair and to raise the garage floor.

Pressure grouting is very versatile. It can be used for new construction as well as existing construction. It can be used to fix an existing problem or to prevent a future problem. Concrete professionals consider pressure grouting as a very cost effective measure.

The reason you are experiencing foundation issues, may have nothing to do with the home itself or previous maintenance. There are certain geographic regions that are known to have softer, more loosely packed soils. When soil structures are weak, the earth can shift and cause structural problems.

There are many reputable and experienced pressure grouting contractors available to help you. These concrete service professionals will visit your home, complete their own detailed inspection, and then recommend the right repairs for your unique problems.

When you put your home on the market you can show buyers a copy of your work order to prove that you resolved any existing issues. This will give potential home buyers piece of mind.

Take action today!

If you suspect that your home has foundation problems and you are about to put the home on the market, take action and schedule a foundation inspection right away. Potential home buyers want to make sure that they are buying a property that is built on a strong and lasting foundation.

Caulking and why it is necessary

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A question we get often is “Can you seal my cracks and joints on my concrete?” and yes, the answer is yes!

There are many different reasons why you would want to make sure the joints of either your driveway, walkway or patio is sealed up. First reason we recommend caulking those joints are to make sure there is no water from either rain fall or sprinklers that can get down through those cracks and or joints to cause erosion which then leads to voids under your slabs leaving the concrete unstable and vulnerable to crack due to pressure and more likely to settled.

Another reason our estimators would recommend caulking these areas would be it gives the concrete a nice finished look. (some before and after photos attached at end)

There are many benefits from caulking the joints and cracks of your concrete but by giving us a call at Slabjack Geotechnical we can point you in the right direction to get your concrete in the best shape!

Superior Technology, Superior Polymers, Superior Training, producing Superior results.

www.SlabjackGeotechnical.com
1-855-752-2522