Category Archives: Polyjacking

Mudjacking vs. Foam – Best Practices for Concrete Leveling

There are a few slab jack methods to choose from when it comes to concrete leveling. Whether it’s mudjacking or foam injections, both are designed to lift and stabilize the slab. However, there are subtle differences. It’s essential to know the differences, so you can decide the best option for your concrete leveling project.

Mudjacking

Men mudjacking a concrete slab to lift itMudjacking is the oldest concrete lifting and leveling process. The installation process uses grout to lift the concrete back to its original state. The grout is comprised of heavy sand-based material. First, a large 2-3″ hole is drilled through the slab, then the grout is pumped under the concrete to raise it back in place.

Unlike polyurethane foam injections or polyjacking, mudjacking has several drawbacks such as:

  • Uses heavy grout material, causing foundation damage and settlement over time
  • Requires numerous large drilled holes to lift the concrete
  • The material may deteriorate, erode, or crack, creating instability
  • Takes 24 hours to completely cure
  • Messy material and worksite
  • Does not stabilize the underlying soils due to the thickness of the grout material

Polyurethane Foam Injections

Polyurethane foam injections are a newer concrete leveling method used to lift settling and sinking concrete. In the past, it was mainly used for public work applications for highways and streets. Now, it involves residential and commercial projects, as well.

Unlike mudjacking, foam injections use dense material that weighs 2 lbs per cubic foot. A 5/8 diameter hole is drilled through the concrete, then polyurethane is injected under the slab and into the ground.

As the foam is injected, it expands and fills in voids and gaps. Also, the foam lifts the concrete back to its original position, preventing future settlement.

The polyurethane foam is water-resistant, so it won’t wash away and the foam seals the bottom of the slab, preventing water damage from impacting the concrete.

Mudjacking vs. Foam – Benefits of Foam Injections

Although foam injection is a newer concrete leveling process, it offers many benefits. Some of these benefits include:

  • drilling holes in concrete to implement polyjackingFewer and smaller drilled holes than other methods
  • Dense, lightweight foam
  • Cures within 15 minutes
  • Moisture-resistant
  • Strengthens weak soils
  • Fills voids and holes
  • Long-term repair
  • Eco-friendly material
  • More accurate than other methods (within 10/1000th of an inch)

These are a few advantages of polyurethane foam injections used to lift your settling concrete slab. At Polyjacking.com, we can help you determine the best concrete leveling and lifting method for your slab.

Both methods, polyjacking and mudjacking, are designed to strengthen and stabilize your concrete surface for many years to come. Contact Polyjacking.com for more information about foam vs. mudjacking.

Municipal Applications for Concrete Leveling and Polyjacking

Repairing damaged concrete in municipal areas takes professional work, much experience, and top-quality products. To have concrete that will be stable and long-lasting, it is important to hire the right crew who can get the job done efficiently using the right tools and methods. Our professionals here at Polyjacking.com can help you with any repair needs you may have.

Public roads, sidewalks, and driveways are used by countless citizens and vehicles every day, and it is not uncommon for concrete damage to occur. We can operate on any cracked, sloping, or raised concrete in public areas, quickly and efficiently. Users of the concrete will not be inconvenienced for very long during the repair procedure. Our methods are fast and efficient, taking little construction time and causing minimal disturbance.

Polyjacking for Municipal Projects

municipal applications Kansas City and St. LouisThe best method that can be used to repair concrete is polyjacking. Polyjacking is used in applications that have voids needing to be filled. We use a high-density polyurethane foam that expands when injected to fill every crevice of the concrete and completely stabilize it.

Some of the applications that benefit from polyjacking are:

  • Highway Leveling
  • Void Filling
  • Curb Leveling
  • Sidewalk Leveling
  • Infrastructure Repair
  • Structure Stabilization
  • Interior Floor Stabilization
  • Road Leveling
  • Airport Runway Leveling

To see some of the work we have done, visit our photo gallery. Contact us today if you have any further questions about concrete leveling in Kansas City, MO and surrounding areas.

Commercial Floor Repair

Commercial Floor Repair and Concrete Leveling

Commercial Floor Repair in St. Louis and Kansas CityCommercial floor repair can be done by the professionals at Polyjacking.com, a division of Pro Foundation Technology. Our team of professionals wants to assure our clients that the job will be done right the first time and that your floors will be ready for flooring installation. We have been serving our clients since 1978 and we’re a member of the Home Builders Association. We continue to offer our services in Colorado, Iowa, Texas, Kansas, Kentucky, Missouri, Mississippi, Oklahoma, and Tennessee.

We fix settling concrete beneath pavement for apartment buildings, shopping malls, parking lots, skyscrapers, sports arena, concert halls, libraries, and more. Repairing these damages will increase the value of your property and save you money in the long run. Our team of professionals will assess your concrete problems and provide a free price quote.

At Polyjacking.com, we use high-density polyurethane concrete leveling, also known as polyjacking or foam jacking. It is the best concrete leveling solution in today’s market. Polyurethane offers many benefits. It is cost-effective, environmentally friendly, and energy-efficient. This technique has been used for over 30 years on highways, providing excellent results. Not only does the foam repel water, but it also sub-seals floors. If you have uneven concrete, let Polyjacking.com inspect your concrete to determine if you need polyurethane concrete leveling in Kansas City and the surrounding area.

Concrete Repair with Polyurethane Injection

Commercial Floor Concrete Repair in Kansas City and St. LouisWhen using polyurethane injection to repair your concrete, we use the right poly equipment and materials. The process is quite simple but effective.

  1. We drill a small hole in the damaged concrete slab.
  2. We inject polyurethane foam into the void underneath the slab. The concrete is raised as the foam expands and the slab is permanently stabilized.
  3. We fill the holes and clean up the worksite.
  4. The polyurethane foam hardens very quickly allowing the concrete surface to be ready for use in about 15 minutes.

Polyurethane foam eliminates any erosion issues because it is water-resistant. It offers the following advantages:

  • By creating its own hydraulic lift, we can control the lifting process.
  • It contours to the size and shape of the area providing 100% coverage.
  • It is more economical than other concrete leveling methods.
  • Polyurethane is a seal barrier that guards against water and moisture.
  • It improves the structure of the concrete pavement.

For Concrete Leveling, Contact Polyjacking.com

Polyjacking.com was one of the first companies to use this new polyjacking technology to replace the now outdated mudjacking technology in concrete repair. As a matter of fact, we created the term for the process of polyurethane injections. Contact us today for more information.

Void Detection

What Causes Voids?

GPR void detection for locations near St. Louis and Kansas CityWhen voids form beneath the concrete, they can cause many issues such as settlement, cracking, and sinking foundations. These voids can form due to several reasons such as:

  • Soil Shrinkage – When there are periods of hot and dry weather, soil shrinkage can form voids beneath foundations and concrete.
  • Erosion – Excessive rainfall and melting snow can wash away the soil under your foundation and concrete creating voids.
  • Hydrostatic Pressure – Heavy precipitation can also lead to an increase in hydrostatic pressure in the soil creating voids and causing the foundation to shift, settle, and sink.
  • Heaving and Settling – Varying temperatures will cause the ground to freeze and thaw, which can cause voids to form.

As a home or business owner, you may not even be aware these voids are occurring. This is why it is important to contact a professional with experience in void detection. Polyjacking.com can inspect your home or business using a Ground Penetrating Radar (GPR) for void detection in Missouri and Kansas.

Using GPR to Find Voids

Void detection Kansas City and St. LouisGPR uses a high-frequency radar antenna and advanced signal software to accurately locate voids and objects. GPR is fast, accurate, and inexpensive. This method of void detection detects embedded utilities, conduit, PVC, rebar, and tension cables. GPR prevents costly and potentially dangerous mistakes, such as cutting utilities or rebar. It is a much quicker and less disruptive method than other void detection methods such as X-rays.

If voids are detected, we use high-density polyurethane foam to fill the voids. This polyurethane foam will expand to over 20 times its liquid volume to fill the entire void. The curing time is quick, so you can use the affected area about 15 minutes after the repair is completed. Poly trucks are used for the installation process. This method is relatively simple.

  1. A small 5/8″ hole is drilled through the affected area.
  2. Using our highly specialized system, polyurethane foam is injected into the void. As it expands, it fills the entire void.
  3. Lastly, the holes are filled, the site cleaned up, and the equipment is removed.

Due to the short hardening time of the polyurethane material, the concrete surface is immediately ready for use. The dense polyurethane material is impervious to water preventing future erosion problems. Don’t let voids beneath your foundation or concrete cause you more expensive repairs. Contact the professionals at Polyjacking.com, a division of Pro Foundation Technology today!

The Benefits of Using Polyurethane for Lifting Concrete

Settling Concrete in the Kansas City Area

Polyurethane Concrete Lifting for the St. Louis and Kansas City areaSettling concrete could benefit from polyurethane lifting solutions. Settling concrete foundations cause structural problems such as sloped floors, floor cracks, and sticking windows and doors. If the settlement becomes severe enough, it could lead to complete foundation failure. To avoid this fate, it is important that you invest in concrete lifting and leveling services as soon as you notice any sort of settlement in your foundation. The most economical and efficient method of concrete lifting is known as polyjacking. The polyjacking process utilizes a polyurethane injection beneath the slab to lift the concrete and fill the voids that have formed beneath the foundation.

What is Polyjacking?

The first step in the polyjacking process is to drill a series of small holes in the slab that has started to settle. It is important to make sure that the hole is properly spaced so that they do not weaken the concrete. Next, the polyurethane is injected through these small holes into the voids below. Once it is injected, the polyurethane material expands, compacting the soil around the voids that it fills, creating a solid base for the entire foundation, and lifting the foundation to the proper level. Finally, the holes are filled and the site cleaned up. This process is efficient, and the polyurethane hardens fast to allow the regular use of the foundation about 15 minutes after application.

Why Choose Polyurethane for Concrete Lifting?

In addition to the fast curing time of the polyurethane used in polyjacking, there are several other benefits to choosing this repair method. Some of these benefits are:

  • Permanent Solution: Because it works to fix the root cause of the sinking foundation rather than just lift it, polyjacking is a more permanent solution than other traditional concrete lifting methods, such as mudjacking.
  • Lightweight Material: The mudjacking procedure, similar to polyjacking, uses a heavy concrete grout. It adds 100 pounds per cubic foot to the sub-base, while polyjacking adds only 3-5 pounds. Poly trucks are used to transport the polyurethane material.
  • Protects Against Moisture: Unlike the grout in mudjacking, the polyurethane foam used in polyjacking seals the bottom of the foundation to lock out water seepage and prevent erosion.
  • Increased Accuracy: With the polyurethane injection process, the foundation of your home can be raised to within 10/1000th of an inch.
  • Little Disruption: Because it requires minimal equipment and time, polyjacking is a less disruptive option than concrete removal and replacement.
  • Economical Option: Polyurethane injection beneath your slab is around 75% cheaper than tearing out the old concrete and replacing it with a new foundation.

Contact us today to find out more about how polyurethane is the best option for your concrete lifting needs.

How Does Winter Affect Concrete?

Winter in Kansas City

winter concrete repair in the St. Louis and Kansas City areaCold weather can cause many issues for the concrete surrounding your home or business in Kansas City and St. Louis. When water freezes it expands and produces pressure in the pores of the concrete. If this pressure exceeds the tensile strength of the concrete, the concrete will rupture. The effects of the freeze-thaw cycles will cause scaling, cracking, and crumbling of the concrete.

The deicing chemicals used on concrete throughout the winter causes concrete scaling. This is the loss of surface mortar on the concrete. The signs of concrete scaling are easy to see. The concrete becomes rough and flaky and may also pit. In some cases, the concrete becomes loose and breaks off in chunks.

Concrete cracking is the result of freeze-thaw deterioration of the aggregate within the concrete. Water gets into the cracks and accumulates. Then with the freeze-thaw cycles, the cracks will form at the bottom of the concrete and progress upward.

Crumbling concrete is also the result of the freeze-thaw cycles of winter and the deicing products used. It is unsightly and can become a tripping hazard.

Concrete Repair

winter concrete repair and leveling Kansas City, concrete leveling St. Louis, concrete repair in Missouri and KansasIf the winter weather takes a toll on your concrete, the experts at Polyjacking.com has the right poly equipment to get your concrete looking like new again. We use a high-density polyurethane foam that is injected into the concrete.

Polyjacking is a relatively simple method

  1. A small 5/8″ hole is drilled into the affected concrete.
  2. Polyurethane foam is injected into the hole. As the foam expands to fill the entire void beneath the concrete, it raises the concrete.
  3. The hole is filled and the site is cleaned up.
  4. Due to the fast curing time of polyurethane foam, the concrete can be used about 15 minutes after application.
  5. Polyjacking also fills in cracks and gaps and stabilizes the soil beneath the concrete slab.

Polyjacking.com can inspect your concrete and offer you solutions for preventing concrete damage before winter sets in or repair your concrete that has been damaged by the harsh winter months. Don’t hesitate to contact us for a free estimate and inspection!

What Causes Voids in Kansas City and St. Louis?

Void & Concrete Repair

cause of voids in St. Louis and Kansas CityMost people think concrete repair is needed for mature, existing concrete structures caused by outside elements. However, concrete repair can also be needed for newer construction. If concrete is so widely used in the construction industry, why does it sometimes form voids under the surface and deteriorate so quickly? Unfortunately, this may be due to environmental causes or human error. Some environmental causes are problems created by:

  • Freezing and thawing conditions
  • Drought-like weather conditions
  • Chemical agents such as salts and moisture
  • Decaying organic materials
  • Shrink and swell cycles (excessive water)
  • Soil erosion
  • Hydrostatic pressure

Voids can also be caused by human error due to poorly compacted fill material, too much water added to concrete, inadequate concrete cover or structural overload. These conditions can weaken the concrete surface causing settlement, sinking, and shifting over time. The concrete may start to crumble, crack, flake, or chip.

Concrete Repair & Lifting

If you have cracking or uneven concrete, let our professionals inspect your concrete surface. Our company offers a variety of concrete repair solutions that will permanently lift and stabilize the slab by using polyurethane foam. We can repair settling concrete for any residential, industrial, and commercial project.

Residential Concrete Repair

filling voids with polyurethane foam in Kansas City and St. LouisFor residential projects, we can repair the following:

  • Garages
  • Driveways
  • Basement floors
  • Patios
  • Sidewalks

Commercial Concrete Repair

We offer commercial concrete repair for the following:

  • Public parking lots
  • Theatres
  • Sports arena
  • Apartment buildings
  • Shopping malls
  • Skyscrapers

commercial polyjackingIndustrial Concrete Repair

For industrial projects, we offer concrete repair for the following applications:

  • Heavy machinery stabilization
  • Bridge approach void filling
  • Highway leveling
  • Infrastructure
  • Sewer line
  • Road leveling

What Type of Concrete Repair Method is Used?

With polyjacking, we use high-density polyurethane foam to lift and stabilize the slab back to its original level without replacing the concrete. This process saves you time and money without excavating the work area. Polyurethane trucks and the right equipment are used for the installation process, which is relatively simple.

Polyurethane provides numerous advantages, that’s why it is highly used in the concrete repair industry. It is highly durable, accurate, efficient, and cost-effective. It prevents resettlement from occurring because it is lightweight and moisture resistant.

If you have voids under your concrete surface, give Polyjacking.com a call today. We are proud members of the community because we focus on integrity and putting our customer’s needs first.

What Can Be Polyjacked?

Polyjacking Concrete Repair in St. Louis and Kansas CityWhat is Polyjacking and Why is it Beneficial?

At Polyjacking.com, we use poly equipment and trucks to lift the concrete slab. Polyjacking is a process that requires raising the concrete slab by drilling holes through the top surface of the affected slab, then injecting high-density polyurethane foam into the holes to fill in voids and cracks.

There are many reasons why polyurethane is used as an alternative concrete repair method, but here are the most common reasons:

  • Smaller holes: With polyurethane foam, we can drill smaller holes (5/8″) into the concrete than other methods. Mudjacking requires larger holes (2-3″).
  • Lightweight material: Since polyurethane foam is lightweight compared to the mudjacking slurry, it doesn’t create pressure to underlying soils. The slurry used for mudjacking is heavy, causing resettlement over time.
  • Fewer holes: Polyurethane foam requires fewer holes which makes your concrete surface look cleaner afterward compared to traditional mudjacking.
  • Permanent repair: Polyjacking is a long-lasting repair method, not a temporary fix. It won’t lose density or erode like mudjacking. It cures within minutes, allowing you to use the concrete surface shortly after installation.

What Causes Concrete Settlement?

Polyjacking can be applied to sunken or settling concrete that needs to be realigned to its original position. The most common causes of settling concrete are due to the following soil-related issues:

  • Poor drainage
  • Soil erosion
  • Soil compaction
  • Plumbing leaks
  • Soil shrinkage

What Kind of Concrete Surfaces may Require Polyjacking?

Polyjacking can be applied to sidewalks, driveways, walkways, parking lots, patios, steps, garage floors, and basement floors.

Not only do we offer residential repair service, but we also provide commercial and industrial service to repair office floors, warehouses, sports arenas, libraries, and much more.

Why Choose Polyjacking Over Other Concrete Repair Methods?

Polyjacking offers the following benefits:

  • Durability
  • Maintains structural integrity
  • Moisture seal barrier
  • Fast curing time
  • No demolition or excavation
  • Drills smaller holes
  • Less noticeable
  • Contours to the shape and size of the voids
  • Minimal disruption
  • Maintains compressive strength
  • Eco-friendly
  • Extreme lifting capability
  • Prevents heaving
  • Seals joints and cracks
  • Erosion free

Why Should You Choose Polyjacking.com for Polyjacking Concrete Repair?

We offer free online quotes for every project in our service area. Our service area includes Arkansas, Colorado, Illinois, Iowa, Kansas, Kentucky, Minnesota, Mississippi, Missouri, Nebraska, Oklahoma, Tennessee, and Texas. We provide residential service for Kansas and Missouri only.

The Effect of Water on Concrete

Types of Concrete Issues

Water affects Concrete in St. Louis and Kansas CitySince concrete surfaces are hard, most people don’t think of them as being porous. In fact, they have a capillary structure that consists of millions of microscopic cracks and holes that absorb water like a sponge. Too much or too little water can make the concrete expand or contract, causing cracks, heaving, and other damage to the slab.

The effect of water may cause the following issues:

  • Concrete heaving: Too much moisture in clay soil with improper drainage can lead to concrete heaving over time. As a result, the concrete can become uneven or settle.
  • Concrete cracking: Drought-like conditions, clay soil, and fluctuating temperatures can lead to soil-related issues and cracking.
  • Concrete shrinking: Shrinking concrete makes the concrete uneven and can cause cracks over time. This could be caused by lack of moisture and decreasing temperatures.
  • Settling and sinking: Fluctuating soil conditions, soil expansion, and heaving can cause the concrete to settle and sink.
  • Voids under concrete: Too much water, heaving, and dry soil conditions can lead to shrinkage. These fluctuating conditions form voids under the concrete surface.
  • Holes underneath concrete: Excessive rainfall, melting snow, and heavy precipitation can create holes beneath the concrete. This also causes cracks and settlement on the surface. A Ground Penetrating Radar (GPR) is used to detect underground holes.

Water-Related Issues & Your Concrete

  • Salt and Water: When water carries salt into the pores and cracks of the concrete, it starts an acidic reaction by destroying the bonds in the cement. As a result, the voids in the concrete get larger and absorb more water and salt.
  • Freeze/Thaw: Since concrete is extremely porous, water could easily be absorbed into the concrete through cracks and fissures. As the water expands, it creates pressure in the pores and causes voids to become larger. Small chunks of concrete may break from the surface, making the concrete uneven.
  • Poor Installation: If too much water is added to the concrete mix during construction, it could weaken the concrete surface.

Repairing Concrete with Polyjacking

Polyjacking.com can inspect your concrete surface and repair problems with cracking, settling, heaving, or gaps beneath the concrete. We accomplish this by injecting a polyurethane foam beneath the concrete slab. This process is called polyjacking, a term we were the first to use. Through polyjacking, polyurethane stabilizes the weak or loose soil to prevent further settlement. It also seals cracks and joints beneath the slab. It requires no excavation or demolition and can be accomplished in minutes. Contact us today so we can serve you in the Kansas City and St. Louis, MO area.

Mudjacking and Polyjacking

What is the Difference Between Mudjacking and Polyjacking?

mudjacking vs polyjacking Kansas City St. LouisConcrete repair is a cost-effective alternative over concrete replacement because of the development of mudjacking and polyjacking. Trying to find the best concrete repair solution can be a difficult decision. That is why our experts can help you decide the best concrete option for all of your concrete repair needs.

Mudjacking vs Polyjacking

Most people know the term ‘mudjacking’, but not ‘polyjacking’. These two concrete repair methods are similar, yet different. They both are used to repair sinking or uneven concrete surfaces caused by poor soil conditions under the slab. Our concrete repair services can fix driveways, porches, concrete slabs, garages, basement floors, foundation slabs, sidewalks, and concrete steps.

However, polyjacking offers more benefits over mudjacking. Mudjacking requires heavy equipment and numerous mudjacking trucks for installation. The process involves drilling large holes (2-3″) into the concrete surface, but the results may not be permanent. The curing time could take hours to days. Unlike polyjacking, mudjacking can only be used in above freezing temperatures and the cement mixture that is used can be susceptible to shrinking.

On the other hand, polyjacking doesn’t need heavy poly equipment and only one truck is needed for the project. Small, 5/8″ holes are drilled into the concrete and the outcome lasts longer than mudjacking. Another advantage of using polyjacking is the simple installation process that uses high-density polyurethane foam instead of sand grout to raise the slab to the desired height. The use of polyurethane under the slab allows it to expand and cover all areas without shrinking.

Benefits of Polyjacking in Kansas City & St. Louis, MO

polyjacking and mudjacking differences for St. Louis and Kansas City locationsPolyjacking uses polyurethane which is a lightweight, high-density foam material. Because of this characteristic, it doesn’t create additional stress on the weak soil. The material fills all voids and lifts the concrete slab without losing density. Polyjacking also offers the following benefits:

  • Long-lasting concrete repair solution
  • 5/8″ small injection holes are drilled into the concrete
  • Installed in any type of climate
  • Cures within 15 minutes
  • Moisture seal barrier
  • Contours to the size and shape of voids
  • Polyurethane precisely lifts the slab to within 10/1000th of an inch

If you want to save time and money, polyjacking is the best alternative to concrete replacement and mudjacking. Polyjacking.com will enhance the overall appearance of your concrete surface for many years to come.

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