Top 4 Best Concrete Crack Repair Methods

concrete crack repair

Concrete is a vital construction material extensively used in buildings, roads, bridges, and dams. However, like most commonly used construction materials, concrete may develop cracks over time. This is because crack not repaired can continuously expand until it becomes dangerous enough to cause structural failure. Repairing a cracked concrete is both time and cost-constrained, and as such, adopting the right concrete crack repair method is important so as to significantly save time, money, energy while producing a long-lasting result.

Understanding the type and nature of cracks that have occurred in a building is the first step towards selecting the most effective method of concrete crack repair. Common crack types include horizontal, vertical, diagonal, and step cracks.

A simple concrete crack repair for a small vertical or diagonal crack without signs of distress may involve filling voids with additional concrete to keep moisture out. Otherwise, the following top crack repair methods are usually adopted.

Epoxy Injection

Epoxy injection for concrete crack repair is useful for filling cracks as narrow as 0.002 inches (0.05 mm). The technique here generally involves establishing entry and venting ports at close intervals along the cracks, sealing the crack on exposed surfaces, and subsequently injecting the epoxy under pressure. However, unless the underlying cause of the cracking has been corrected, it will probably recur near the original crack.

The efficiency of epoxy injection is greatly affected by problems such as silt contamination and leakage, both of which need to be fixed for epoxy injection to last. This crack repair method requires someone with the right combination of skills, discipline, and tact for successful execution.

This method is unsuitable if cracks are active and in large numbers, as well as if water leakage cannot be controlled. On exposure to fire and elevated temperature, epoxy resins lose strength significantly and thus may require fireproofing.

Routing and Sealing

Routing and sealing is the simplest and most common concrete crack repair method. The idea here is to treat the crack like a joint. The technique simply involves enlarging the cracks on the surface and then sealing them with a joint sealant. However, it is vital to adopt the right width to depth aspect ratio when sealing the joint so as to leave enough room for movement. This method is unsuitable for structural repair, serving only as a remedy for minor cracks.

Stitching the Crack

Just like the name implies, the crack can be stitched as a form of repair. The procedure involves drilling an entry and exit hole across the cracked surface and running a number of U-shaped metallic staples through the holes, anchoring them firmly in the hole using either an epoxy-based system or grout. This repair method is efficient and long-lasting.

Drilling and Plugging

This method is recommended for its cost and time efficiency. However, it is only suitable for repairing vertical cracks running in straight lines. During this procedure, a series of vertical holes are drilled in the crack and grout is passed down the holes, forming a key. The key prevents leakages and loss of soil from the wall.

Other concrete crack repair method includes gravity filling, dry packing, overlay and surface treatment, etc. Which is best for a specific case is largely the decision of the concrete service expert. If you have questions about concrete crack repair, contact us today.

What Are the Benefits of Concrete Floor Grinding?

concrete floor grinding

Whether it’s for a home or a business, everybody wants attractive and durable flooring that is low maintenance and cost-effective to install and keep up. But if your concrete floor is damaged, you might be tempted to cover it up with something else. Don’t! Keep reading to learn why you should invest in concrete floor grinding and restoration.

What is Concrete Floor Grinding?

Originally a method used by concrete service contractors in the repair of concrete, marble, and granite floors, concrete floor grinding is a process of grinding and polishing concrete floors until they have a sheen similar to that of a finished marble, hardwood, tile, or granite floor, for a fraction of the cost and a great deal less fuss. Concrete grinding service professionals employ a number of different tools and processes to produce concrete floors with varied and enticing finishes. Each of these could be a great fit for rooms and of all kinds, from garages to rec rooms to bathrooms, living rooms, and kitchens. The high durability of concrete makes it a popular alternative to other flooring options.

It’s Low Maintenance

Easy to clean and requiring minimal maintenance, floors finished with concrete grinding possess a natural shine that doesn’t depend on the regular application and reapplication of awkward waxes, polyurethane or other finishing coats. And they resist marking or staining by nearly any substance, even paints, oils, and many chemicals. They require periodic and easy cleaning with a dust mop, and intermittent deeper cleaning with standard floor mops — that’s it.

It’s Durable

Floors finished by concrete floor grinding are nearly impossible to damage and last a great deal longer than hardwoods, laminates, tile, linoleum, and other flooring choices. And the minimal cleaning they require extends their life as well, as they need almost no scrubbing, no contact with harsh detergents, and very little wet cleaning of any kind.

It’s Beautiful!

Concrete floors that have been finished by concrete grinding are not only polished and unique, they also project a professional, sanitary, and clean image. Their high sheen enhances a room’s natural light, and can brighten even dim or dark rooms that draw less natural light. The natural Earth tone of a finished concrete floor is versatile enough for almost any decor or color theme, and few decor choices bring the outside in as well as floors finished by concrete floor grinding.

Learn More About Concrete Floor Grinding

A concrete service professional can help you learn more about concrete floor grinding options as well as other vital or beautifying services for your home or business. Contact Slabjack Geotechnical about concrete floor grinding today.

Concrete Raising for Soil Concrete Stabilization

soil cement stabilization

As autumn settles in, so can the results of the summer season’s storms and rain. Storm water that battered your property and seemed to depart may not have. It can be causing voids beneath the concrete around your home, even in the foundation. This can have expensive and hazardous results, including uneven walks, steps, and porches; soil loss; and even considerable damage to your foundation. These significant problems can be repaired with concrete raising for soil cement stabilization.

How Sunken Soil Happens

Whether your home is old, relatively new, or brand new, it should have been constructed to direct accumulating water away from its foundation. And even if it was, eroded soil, wear and tear, structural inconsistencies, and even construction errors can cause changes just significant enough that water has begun accumulating where you don’t want it to. Even minor things like insufficiently compacted soil or poorly maintained gutters have the potential to result in major problems eventually. Soil erosion can result in settling concrete and even impact the integrity of your foundation. But sinking or sunken soil can be repaired with soil cement stabilization. And one of the most effective methods of soil cement stabilization is a process called concrete raising or slab jacking.

Soil Cement Stabilization

Concrete, or cement, has a strength of about three thousand pounds per square inch, as an average. It can reach well beyond that average, being as strong as twenty thousand pounds per square inch. Concrete raising provides soil cement stabilization to the soil around a property to counter further erosion from water accumulation. In the soil cement stabilization process, a slurry is injected into the ground where hollows or voids have been detected. This slurry is most typically comprised of a mixture of water and cement, but soil stabilization can use foam and polyurethane as well. The slurry bonds with the soil surrounding a void or hollow and stabilizes the affected area. Once the slurry binds and dries, your property is secure and your foundation safe from the effects of eroding soil. Concrete raising has been used to reverse sunken soil issues for nearly a hundred years and the process is also efficient for lifting sinking walkways, sidewalks, driveways, porches, decks, and other parts of your property that can be impacted by eroding soil.

What You Can Do to Prevent Further Soil Sinking

Keeping water draining away from your home is imperative. Be sure your gutters are well-maintained and directing water well away from the structures on your property. Having your property checked for potential problem areas, such as faulty grades or vulnerable soil, is important as well.

Soil Cement Stabilization for Your Home

Concrete services like slab jacking cost as little as a few dollars per square foot, depending on the property and its condition. It can be a very cost-effective solution to a problem that can get devastatingly out of hand, even when there is a sizable affected area. Soil concrete stabilization is effective and durable.

Of course, there can be additional concrete services needed, such as concrete crack repair, concrete leveling, and even filling voids in concrete. A qualified concrete service professional will guide you through what you need to keep your property safe. Learn more about soil cement stabilization and other concrete services, Seattle and elsewhere, by contacting Slabjack Geotechnical today.

7 Tips for Choosing the Right Concrete Contractor

concrete service

The role of concrete in the world today cannot be ignored. Most of the structures we see daily have used concrete as the primary construction material. As it stands, concrete is the most used man-made construction material in the world.

Whether you are interested in the walkway, patio, driveway, or any other concrete service, you must look for concrete grinding experts who understand their jobs. Because you want your concrete service to be done right, you need to make sure that you choose the right professionals. When hiring a concrete floor grinding contractor, here are some of the tips you can use to make the right decision.

1. Look for Experience

When you are hiring for any concrete service, you must consider industrial experience. Try to make sure that they have been in the business for more than five years, which will give you some reliability and stability. Experienced concrete service men will provide insight and handle technical works, which ensures that your work runs smoothly. Considering experience helps you to choose a contractor who will be able to provide the right ready mix concrete and additional concrete.

2. Verify Insurance

Concrete services can theoretically go wrong at any given time and you don’t want to be liable if that happens. Therefore, you have to make sure that the concrete floor grinding technicians you are considering have an insurance policy that can cover your project in the event of an accident. You also need to verify the insurance policy by verifying the coverage dates from the insurance provider. Verifying will help you to avoid an insurance policy that covers your project, at least partially.

3. Compare Prices

When you meet with concrete service contractors, they will typically present you with an estimate for the project. Compare quotes from different crack repair contractors and use the estimates to make a sound decision. However, it is important to make sure that you don’t get attracted to the lowest prices because you might be getting low-quality services. The key lies in making sure that you get concrete services at reasonable prices.

4. Search For Online Reputation

In the digital age, you don’t have to ask neighbors about the best concrete service provider in the locality. Thousands of concrete companies have websites where they have been getting feedback from their previous customers. Online reputation is reliable and very useful when choosing a technician. Consider working with the contractor who has high positive reviews. You don’t want your driveway to be handled by individuals who have been labeled unreliable by their previous clients.

5. Evaluate Customer Service

Professional customer services form the epicenter of any project. Therefore, when you are hiring a concrete service provider, you should make sure that you hire a technician who is punctual, respectful, and has good communication skills. You want to work with friendly people who understand your needs. For the project to be handled professionally, there needs to be improved human interactions. This is only possible in companies with good customer services.

6. Review the Company Portfolio

Before hiring for concrete raising, make sure that you ask potential contractors to present to you some of the previous portfolios. Most concrete companies will have, on their website or social platforms, a portfolio of the jobs they have handled in recent times. These are the images you should use to get inspired or to find out whether the work done is consistent with your needs.

7. Obtain Licenses and Certifications

Licenses and certifications are essential legal documents that you should consider before hiring a concrete leveling company. Both Federal and State governments provide licenses and certifications to the concrete companies so that they can operate in the country legally. Avoid dealing with unlicensed and uncertified companies because they might be missing on skills and equipment to professionally handle your project.

These are some of the factors that you should consider when you are looking for a concrete service provider. Choose a licensed and insured company that provides concrete services such as raising and leveling, void filling, concrete grinding, and crack repair among others.

What is Concrete Raising?

crack repair

Have you ever encountered broken, cracked, or damaged concrete areas? If you have, you’ll understand how unsafe it can be for you to walk on. This means that crack repair is required as soon as possible to ensure that the existing cracks do not cause more damage to the underlying concrete or serve as a potential source of injury for passersby.

Though there are many solutions to fix these cracks, one of the most popular and effective options is slab jacking. Also known as mud jacking or poly jacking, this is the process of adding more material to raise the level of concrete and to make it even and smooth. This cement raising option is a great alternative to a complete concrete replacement and can save you anywhere from 30% to 50% in time and costs. In other words, when you spot damaged or cracked concrete, simply fill the underlying area with concrete and raise the level so it becomes uniform.

How Does Concrete Raising Work?

In slab jacking, a small hole is drilled on your concrete and the material is poured through it. This makes the foundation sturdy and fixes cracks and holes at the same time. Later, concrete is injected to support and level the slab. After those steps are completed, the drilled holes are patched and smoothed out to give you a concrete area that looks almost like new.

Why Choose Concrete Raising?

Many advantages come with concrete leveling or raising and some of them are as follows.

Saves Time and Money

Traditionally, the best way to perform concrete crack repair is to replace the entire concrete area. But the catch is that this option is time-consuming and expensive. It may not be ideal for all situations, to put it plainly. Many times, such concrete replacements are out of reach for homeowners and small businesses.

In such cases, a simple crack repair is a better option, as it can be done within a short time and will cost only half as much as a concrete replacement. Unlike traditional mud jacking, where you need to wait anywhere from two to seven days for completion and restored use, you can use raised concrete immediately.

Minimizes Damage

Concrete raising reduces the possibility of damage to your yard or walkway because no heavy equipment is needed or used in the process. The only equipment that could possibly impact is a large hose pipe, but even that will not cause any damage to your lawn. Anything you can do to minimize further damage to the surrounding area can be considered a

Reduced Chance of Injury

Traditional crack repair options can take many days. During this time, there is always a possibility for your family members or visitors to get hurt. But with the right concrete crack repair services, you can complete the repair work within a matter of hours. The less time the job takes to complete, the less likely it will be for someone to get hurt.

Improves Ground Support

When you pour mud or pump cement to the ground, it further strengthens the foundation and ensures that your crack repair work lasts for a long time. By taking this small step, you can strengthen the area that surrounded the crack and make the entire piece of concrete last for a longer period.

Thus, these are some of the benefits of concrete raising. If you’re looking for a reliable soil cement stabilization, concrete crack repair service, or concrete grinding services in the Seattle area, reach out to Slabjack Geotechnical as they have many years of experience in this area and can do any crack repair most cost-effectively. They use the best quality of materials and will complete the job within the shortest possible time.

Facts About Concrete Voids and Concrete Damage

concrete crack repair

Though concrete is a durable and inexpensive material used both inside and outside the home, concrete does not last forever. Cracked, uneven, or sunken concrete can occur for many reasons. In rare cases, damaged concrete results from ice, earthquakes, impacts, or overloading. More commonly, however, voids under the concrete are responsible for damaged concrete. When a void is responsible for concrete damage, concrete crack repair may be ineffective without first filling the void. Here are some facts about concrete damage and the process for repairing it effectively:


Voids are underground areas where soil is less dense and, consequently, able to support less weight than compacted soil. This fact is confusing to some people because the general view is that the ground is stable and should always remain so. However, voids under a concrete slab can be caused by a number of conditions:

  • Water flowing under the concrete slab causing soil erosion
  • Underground water flows dissolving limestone shelves and causing soil to collapse
  • Insufficient soil compaction before construction, exacerbated by the weight of the structure built on top of the uncompacted soil
  • Loss of lateral support due to nearby excavation, mining, or construction activity

The risk of voids can be reduced by properly draining soil around the structure and completely compacting soil before construction. However, some voids are, no pun intended, unavoidable. Voids due to dissolved limestone or subsidence probably cannot be prevented in any event.

Concrete Damage

Concrete is strong under compression forces, but weak under tension forces. Prestressed concrete, which has steel rebar embedded in a concrete slab, was designed to compensate for concrete’s weakness in tension. In tension, the steel bars bear the load so that the concrete does not need to. However, there are limits to the tension forces any concrete slab can bear. When those limits are reached, the concrete will crack necessitating concrete crack repair.

Imagine, for example, a concrete slab that is supported in the middle by compacted soil but has voids under each end. The concrete slab would be balanced like a see-saw, with both ends sagging. At this point, gravity takes over and the concrete slab will eventually reach a more stable position. The slab may pivot and slide laterally into a void, resulting in a raised or sunken concrete slab. Additionally or alternatively, the sagging ends will cause the concrete slab to crack in the middle.

Concrete Repair

Concrete crack repair is not as simple as filling the crack. Anyone who has used DIY concrete crack filler knows that filling the crack will be an ineffective form of crack repair absent filling the void that created the crack in the first place. Merely filling the crack will often fall short as a form of concrete crack repair because the crack will reopen as the concrete continues to sag into the underground voids.

The process used to fill concrete voids has existed for nearly 100 years. The process was formerly referred to as mudjacking or slabjacking because the process is exactly as the name implies – grout (referred to as mud in those days) is injected into the void, where it expands and hardens. Filling the void under a concrete slab with grout accomplishes a few important tasks:

  1. Injecting grout into the void densifies the soil, supporting the concrete slab and filling the void
  2. Grout expands, lifting the concrete slab and straightening it
  3. Grout hardens, preventing further soil collapse

There are a few different forms of grout used to fill voids. The “mud” version of grout is a mixture of water, cement, and a fine aggregate, such as fly ash or sand. The grout is usually looser than concrete, since the goal is to fill all the cracks and crevices in the void. As an aside, concrete and cement are not synonymous; cement holds concrete together but cement also holds grout together.

Another form of grout is polyurethane, a polymer. Polyurethane is delivered as a foam which expands and hardens inside the void. The primary benefit of polyurethane foam over cement grout is that polyurethane foam cures quickly and can be injected even when the soil is moist.

In sum, the most common cause of concrete damage voids under the concrete slab and, consequently, repair of cracked, uneven, or sunken concrete often requires that the voids be filled first.

When To Call For Concrete Crack Repair Services

concrete crack repair

If you’ve got concrete in your home as part of your basement construction, foundation, garage floor, or elsewhere, proper maintenance is a must-have. Without taking care of your home’s concrete, you could potentially end up with cracks. Concrete crack repair services are available if you’ve already noticed some damage in your home or are looking to make home repairs in addition to your concrete. Here are just a few common signs that it might be time to call a professional about concrete crack repair services.

Cracks In Structural Areas

Not all concrete damage and cracks are created equal. While cracks in concrete anywhere can be a problem, the ones to ultimately prioritize are the cracks that could impact structural integrity. Due to concrete’s excellent durability and performance, polished concrete flooring has quickly become a popular alternative to marble, granite, tile and linoleum for many commercial facilities. Cracks in flooring can be serious, but cracks in a foundation or load-bearing wall are issues to address as soon as possible.

Signs Of Water Damage

Depending on the location of the concrete damage, it’s possible that it could be allowing water into your home or place of business. A little bit of water might not necessarily seem like an issue, but water damage can quickly become serious and damage the structure of your home or workplace. If you can trace signs of water damage back to cracks in concrete, call for concrete crack repair services as soon as you’re able.

Preventive Maintenance

Sometimes you might come across a crack in concrete that doesn’t seem terribly serious at the moment. Maybe it’s a small hairline crack in your garage’s floor, or you remember a particular issue that caused the damage. Even if the crack isn’t a structural issue or causing more serious types of damage, it’s still important to get it taken care of quickly. Fixing a crack in concrete sooner can help avoid more expensive damage later on.

Knowing when to call for concrete repair services can help you protect your home or workplace from serious damage. For more information or to schedule concrete repair, contact Slabjack Geotechnical today.

BUSTED: 3 Myths About Concrete Leveling

filling voids in concrete

Concrete is the most-used manmade material in the world. Humans have found a way to incorporate the strong and durable material — which is capable of withstanding 3,000 psi (lbs/square inch) on average — in every area of industry and life. However, that doesn’t mean it’s indestructible; concrete crack repair services are often required to avoid the complete replacement of slabs. Concrete raising (also known as concrete leveling) offers an effective and affordable solution to filling voids in concrete, but there are many myths and misconceptions in circulation regarding the practice. Let’s find out the truth.

MYTH: Concrete Leveling Is Expensive

Most people are familiar with the cost of concrete slab replacement, which is notoriously expensive. However, just as repairing your roof is cheaper than replacing the entire thing, concrete leveling is much more manageable financially. If you’re looking for a way to improve the health and appearance of your concrete driveway or walkway without breaking the bank, concrete leveling is an excellent option.

MYTH: Anyone Can Do It

While there are many home repair projects that you can do yourself, filling voids in concrete via concrete raising is not one of them. Simply watching some Youtube videos and reading an article does not an expert make, and expertise is required for this process. There is specialized equipment involved that takes knowledge and hands-on experience to operate; if you try to tackle this project on your own, you could end up with a slab that looks awkward, lacks integrity, and will continue to degrade regardless.

MYTH: Caulking Is Just as Effective

Caulking works for most indoor cracks and splits, so your logic may tell you that it can be used on concrete just as well. You’d be wrong; the real problem in cracked concrete lies far below, so if you caulk the area that you see, you’re not actually doing anything to fix the root of the issue. Concrete raising involves filling the soil underneath the slab that has shifted and caused the crack to appear; only by going all the way down can you ensure it has been stabilized and restored to its original strength.

If you’ve noticed cracks in your concrete, don’t wait (or try to repair them yourself); call a concrete contractor as soon as possible.

When Is It Time To Consider Cement Raising?

cement raising

Many homes generally have concrete in some part of their structure, whether in the basement, garage, or elsewhere. In fact, it’s used so frequently in construction that concrete is used more than any other manmade material in the world. While concrete is a great choice to use in construction due to its durability and strength, it needs maintenance and repair like any other material used in your home. If you’ve got concrete in your home, here area few signs you might be in need of cement raising or concrete leveling services.

Cracks In The Structure

Whether they’re in the concrete itself or elsewhere in your house, cracks can be a sign that your concrete isn’t entirely level. These tend to show up over time as your home settles following construction, so you might not necessarily notice them right away. Check your exterior walls, around windows and door frames, and in the concrete itself if the concrete is visible. While you can use concrete crack repair services, it may be a temporary fix; you may need cement raising to really solve the problem.

Warping Floors

While floors can naturally settle and adjust over time, serious warping might be a sign that the concrete foundation underneath is cracking or otherwise uneven. A foundation that isn’t level might look perfectly fine, but on further inspection can have slight imperfections that warp your floors.

Walls Or Floors Pulling Away

Sometimes, the cracks that normally occur along window frames or in places where you can otherwise see them end up in locations that are extremely hard to notice. When this happens, they tend to worsen and cause further damage in your home. This sometimes can result in walls, floors, patios, or other structures seeming to pull away from the surrounding walls. These can create serious safety hazards when left unchecked, and you’ll want to look into cement raising to address this as soon as possible.

Damage to the concrete foundation of your home can be a serious issue that puts the overall structural integrity of your home at risk. For more information on cement raising and how it can help prevent damage in your home, contact Slabjack Geotechnical today.

Top 3 Mistakes You Could Be Making When Grinding Concrete

concrete grinding services

Concrete, of all things, is used more than any other man-made material in the world. Which means you should probably know how to take care of it. Surface preparation is a pretty competitive industry. Making sure you’re choosing the right concrete grinding services is vital if you want a quality outcome. Maybe you are experienced and feel confident in your own ability to prepare your garage floor, for example. Either way, here are three common mistakes that you want to avoid whether you’re a professional or not when you get down to the concrete grinding phase in your construction or home improvement projects.


1. Ignoring Scratches


When concrete grinding, you’ll want to keep an eye on the finish that is being produced as you go. If you are seeing faint scratches appearing, you have to remove them as soon as possible. Hoping the little nicks and scratches will go away on their own will only contribute to continued manifestation as you polish your concrete floor. If you start to see scratches after using your first resin, you should never assume that your second step in the process will “fix it”. Basically, do not leave the cracks and hope they go away because, inevitably, they won’t, and as a result, your final product will suffer.


2. Grinding Too Fast


A common mistake that operators make is running the grinder too fast. All commercial concrete grinding services should know not to do this. However, this tends to happen when the operator wants to produce results faster, so they will turn up the speed of the grinder in an effort to get more done in a shorter amount of time. However, the increased speed can overheat and glaze over your diamonds. This happens more often than not on harder concrete. This glazing over prevents them from cutting properly. Of course, finding the right speed is important but speed on its own doesn’t equal better production rates. At the end of the day, greater downward pressure equals faster grinding. A heavier machine will obviously allow for more head pressure. The opposite is true of larger machines where a double segment offers better performance due to the fact that it is grinding a larger space at one time. Concrete floor grinding is a competitive industry as well as being something of an art. Knowing that you’re choosing the best concrete grinding service, or being fully informed when doing it yourself is what is most important for a great outcome.


3. Not Inspecting Beforehand


While it sounds silly and probably seems impossible, you would be surprised how easy it is to look at a surface and assume the process. Especially if you work for professional concrete grinding services. You’ve pretty much seen it all before. However, that is not an excuse to not examine the surface you’re working with before you do anything to it. You need to inspect the floors for anything above grade and cut it off, hand grind it so it’s level, or hammer it to below grade. Address any crack repair you may need, and once you’ve eliminated any and all above grade issues, you can begin grinding it with the concrete, which results in an interesting detail which can add personality to the floor. If you DON’T inspect the floor and address the above grade parts before you start, you will almost surely damage your machine. Concrete floor grinding is probably a task that is best left to the professionals, call local concrete grinding services to get quotes and expert advice.