Category Archives: Concrete Surface Repair
Have you noticed, especially after recent heavy rains, water ponding on your patio, driveway, or other concrete slabs? While there may be no cracks, somehow the concrete has settled or sunk, and water simply accumulates there, unable to run off. Besides being inconvenient and unsightly, it present a safety hazard for your family and friends who walk across the concrete surface. The quetions is, “What should you do about it?”
Causes of Water Ponding
If there is no obvious crack or hole in the concrete which allows water to seep onto its surface, water ponding often is caused by incorrect grading of the concrete slab from the time it was poured. It is critical that the concrete is set up with a slight slope away from the house and foundation so that the water has an opportunity to run off into the yard, drain, or drainage ditch. If not, water will simply remain pooled on top of the concrete.
Frequently, natural settlement of the soil through the passage of time will cause the concrete to sink in such a way that water is unable to run off. For that reason, builders often recommend not building concrete patios until the soil around a new construction has had adequate time to settle.
Most often, water ponding is due to changes in the soil beneath the concrete slab. After cycles of wet and dry or freezing and thawing, the soil beneath the concrete may become unstable and develop pockets or holes. Eventually, the soil will not be able to support the concrete, and the concrete will actually sink into the holes beneath it. Naturally, after a heavy rain, water will pool into the lowest sections of the concrete.
Three Choices for Solving Water Ponding
There are basically three choices regarding what to do to repair a concrete slab that has water ponding. You can grind it, replace it, or raise it. The following article explains the three options along with their advantages and disadvantages. Hopefully, it will help you determine the best option for your sinking concrete.
Grinding involves grinding off a portion of the good concrete slab so it matches the sunken slab. While it may eliminate a trip hazard, it does not solve the underlying problem and offers only a short-term solution.
The Truth about Grinding
While some companies are willing to grind off a layer of a good slab to fix a trip hazard, it doesn’t solve the underlying problem: what caused the slab to settle in the first place? Unfortunately, whatever caused the problem in the first place will simply return, usually within a year. If the company grinds the concrete a year later, the problem will simply occur the next year, and so on.
The bottom line is that grinding a good section of concrete never solves the root of the settling problem. Its the underlying soil that caused the settling in the first place. After several years have gone by, the concrete will simply become too thin and crack, requiring the entire slab to be replaced. Besides paying for the annual grinding, the homeowner is now faced with the expensive option of replacing the concrete.
If you are extremely tights on funds, grinding could be a solution for you. Keep in mind that it is a short term fix that eventually will require replacement of 2 or more concrete slabs.
Replacement involves tearing out the old concrete and building a new concrete slab in the same spot. It is very costly and disruptive and could lead to further problems in other parts of the structure.
The Truth about Concrete Replacement
Replacing a concrete slab is the most expensive method to eliminate a tripping hazard. Not only will you have the cost to tear out and remove the old concrete, you will need to pay for the grading, materials, and labor for the new slab.
Concrete replacement is also extremely disruptive. Besides creating loud noise with the jack-hammers, removing the old concrete creates a great deal of dust and mess. It also tears up the soil and landscaping surrounding the slab. Bringing in a cement truck to pour the concrete also tears up the yard and makes a mess. Also, it takes a long time for the concrete to cure before you can use it again.
Finally, concrete removal and replacement could damage other parts of the structure while the concrete slab is removed and soil is disrupted. If they are not properly braced, adjacent decks, porches, crawl spaces, drainage systems, and the foundation itself could be damaged during the process, leading to even greater expense.
Concrete Raising and Leveling
Concrete raising involves pumping either a concrete grout (mudjacking) or a polyurethane solution (polyjacking) through small holes in the concrete slab to fill the voids underneath and raise the concrete.
The Truth about Concrete Raising and Leveling
Mudjacking lifts and raises concrete slabs by pumping sand-based grout beneath it. The force of the pump pushes the slab back into place. Unfortunately, it is very messy, takes a long time to dry, and isn’t a permanent solution because the conditions that caused the soil to shift under the slab still exist. It will only be a matter of time before the slab has slipped again.
Poly Jacking, sometimes called Foam jacking, lifts and levels slab foundations through injecting high density polyurethane foam beneath the slab through small holes drilled in the concrete. The foam expands and gently lifts the entire slab back into place.
Polyjacking has many advantages over mudjacking and other methods of concrete repair:
- It requires drilling only small holes
- The polyurethane solution is lighter than mud grout
- Polyurethane expands to fill in the holes and voids and stabilize the soil
- It takes much less time to apply and dry
- Polyurethane last a long time
- Polyurethane is waterproof and flexible during changes in the soil moisture or temperature
- Injecting beneath the slab does not disrupt surrounding structures, soil, utilities, or landscaping
- Poly foams are environmentally friendly, with up to 50% renewable and recycled materials
- Poly foams can be customized to each type of soil and conditions.
Initially, polyjacking is more expensive than either grinding or mudjacking. In the long-run, however, it is more cost-effective because it is extremely long-lasting and will not need to be redone in a year or two. Also, polyjacking not only stabilizes the soil, it strengthens it, so that the concrete is far less likely to crack or need to be replaced.
Contact Polyjacking.com to Eliminate Water Pooling
Polyjacking.com can raise your sunken slab to its proper level within an hour, allow you to use the slab almost immediately without waiting for concrete to cure, and provide a long-term solution to your problem. Contact us today for a free estimate!
Signs of Home and Foundation Damage
As a homeowner in Kansas or Missouri, it is critical to the life of your home that you regularly inspect your home and foundation. Damage to your home’s structure or foundation can appear at any time of the year, but Spring is when signs are most noticeable. In case you’re not sure what to look for, try following this Spring Home and Foundation Repair Checklist.
Spring Home and Foundation Repair Checklist
- Plumbing damage – Moisture is the biggest threat to the stability of your foundation. It’s a good idea for you or a plumbing professional to inspect your plumbing system for leaky or loose fitting pipes to make sure that there is no excess moisture damaging your foundation.
- Foundation damage – Look at the foundation itself. Have there been any changes? Are there signs of shifting, cracking or discoloration? If anything doesn’t seem right, call a foundation repair professional to inspect it for you.
- Cracked floors or walls – Take a tour of the rooms in your home and looked for new or widening cracks in the floors or walls. These are visual signs that your foundation may be shifting.
- Roof leaks – Hire a roofing contractor to regularly inspect your roof for leaks or other conditions that may trap or release any excess moisture into your structure.
- Mustiness or bugs in the basement – Inspect your basement. If there are bugs or a musty smell in your basement, these could indicate a moisture problem or foundation damage. Insects, including termites and earwigs, thrive in a moist environment.
Solving Foundation Problems
If you suspect plumbing, interior, roof or basement issues, you’ll need a professional to inspect and provide a solution to these problems. For cracks, tilting or other common concrete problems on your patio, sidewalk, driveway or foundation, Polyjacking.com is expert at diagnosing and repairing concrete structures and foundations. Call us today!
Poor Yard Drainage
Sometimes yards, driveways and sidewalks in Kansas and Missouri can be flooded during March and April. Melting snow and springtime rains can lead to excess water and slow runoff. Poor yard drainage may cause many problems in your lawn, gardens, external concrete walkways and foundation, including:
- Mud in your lawn where children and pets cannot play
- Potential lawn problems due to insects and fungus
- Poor soil where many plants won’t thrive
- Seepage into your home’s foundation and basement
- Damage to exterior and interior concrete surfaces
Causes for Poor Yard Drainage
Lawn drainage problems are common during spring. Following are some of the causes for poor drainage:
- Wrong slope of the land where water travels to the lowest spot
- Type of soil which may or may not hold or drain water quickly
- Paved areas, driveways, sidewalks or patios which spill water onto your lawn
- Sprinkler systems which may be leaking or running too frequently
- Neighboring yards which may slope onto yours
Solutions for Poor Yard Drainage
The solution to a yard drainage problem depends upon the underlying cause. The most important aspect of any solution for poor lawn drainage is simply finding an alternative place for excess water to go:
- Installing drains in low areas
- Digging trenches to catch standing water
- Installing pipes to route the excess
- Creating a soakaway, an area filled with rocks to absorb excess water
- Repair, seal or level concrete floors and surfaces
When to Call an Expert
Whatever your drainage problems, it is often useful to call in an expert to diagnose and solve your water issues. If you have poor drainage from concrete surfaces or other issues with your concrete patio, driveway, sidewalks or foundations, Polyjacking.com is the Kansas and Missouri expert at concrete leveling and repair. Call our experts anytime you need foundation leveling or repair.
You know icy surfaces can create hazardous conditions throughout the property, but did you know applying the wrong ice melting product can cause damage to concrete surfaces?
Many property owners have been concerned about the use of salt on concrete surfaces, such as driveways, walkways, and sidewalks. In fact, salt is the number one enemy of concrete.
So how does salt damage concrete, and what are some of the best alternatives to protecting your pavement? In order to understand the effects of salt, you must first know the basics of concrete composition. Concrete is porous, attracting and absorbing 10% of water. When water freezes in the concrete, the pressure of the frozen water increases. As a result, pits, cracks, flakes, potholes as well as scaling form on the surface.
Salt is an acid that lowers the pH balance of the concrete. Because it is acidic, it weakens the strength of the concrete and increases the size of the pores. These characteristics allow water and other chemicals to penetrate the surface. If you have patio furniture, salt can also corrode the metal frames.
Fortunately, there are more eco-friendly alternatives to using salt if you are trying to preserve the lifespan of your concrete.
Safer Ice Melting Alternatives to Using Salt
We all know the best way to remove ice and snow is using a shovel. However, shoveling can be a hard, tedious task, especially if the ice is glued to the surface. Here is a list of ice melting alternatives that are safer than using salt:
- Cat Litter
Cat litter doesn’t melt ice and snow, but it provides traction to prevent slippery surfaces.
- Wood Chips, Sand or Gravel
Wood chips, sand, and gravel provide traction to icy concrete surfaces.
- Beet Juice
Because beet juice is effective in temperatures below 20 degrees, it is used to melt ice on municipal roads and driveways. It can also be used for sidewalks, patios, and walkways.
- Heated Stair Mats
If you have concrete steps or stairs, heated stair mats can be placed on your steps.
SafePaw is a safe ice melting product that can be used around pets and children. Also, it will not damage concrete surfaces.
Using salt on a daily basis can damage your concrete, leading to cracks and sinking. If you need to contact a concrete repair specialist, call Polyjacking.com. We are specialists in lifting and leveling damaged concrete throughout the Kansas City and St. Louis areas.
Most people don’t think their concrete slab can be repaired. And others do not want to make the necessary repairs. In reality, concrete is another maintenance project because it is susceptible to damage, especially when exposed to standing water. Every year, homes and buildings experience concrete slab damage due to heavy rainwater and flooding in the Kansas City area. Such situations can have damaging effects on sidewalks, driveways, patios, walkways, concrete floors, and concrete foundations. The good news, however, is that concrete can be repaired. At Polyjacking.com, we make sound decisions and recommendations to solve your concrete slab problems caused by excess water.
Types of Concrete Slab Problems
Concrete slabs are very porous. This means standing water can easily fill in pores on the surface and eventually break down the concrete. As a result, the concrete may crack, move or even settle.
If you suspect concrete slab damage, inspect the surface and look for the following:
- Concrete cracks – Clay soil expands when wet, and contracts as it dries out. This constant fluctuation, causes voids and holes under the concrete slab. As a result, the concrete surface sinks and forms cracks.
- Uneven concrete or holes in the concrete – Concrete that is exposed to too much water, harsh weather elements, and other issues can cause soil expansion and movement under the surface. This creates uneven concrete, as well as holes in the surface.
Concrete Leveling Services
At Polyjacking.com, we provide repair services for your cracked and uneven concrete by injecting polyurethane beneath the concrete slab. Once injected underneath the slab, it fills in voids and raises slab to its desired level. It also seals cracks and joints underneath the slab, while stabilizing the soil to prevent future settlement.
If you have damaged concrete slabs on your property, contact our concrete repair specialist today. We use the latest concrete repair methods to restore your concrete. For concrete repair services in Kansas City, St. Louis, and the surrounding area, contact us today!
While a fresh, white blanket of snow is a pleasant sight, the inevitable task of removing it can be damaging. If not done properly, you can affect your driveway, sidewalk or parking lot. To prevent costly repairs, keep an eye on your asphalt pavement as winter approaches. Look for scrapes, cracks and potholes throughout the surface. These conditions can be unsafe for residents, pedestrians, students, and vehicles. So be prepared this winter by making the necessary repairs to minimize asphalt damage on and around your property.
Factors that Affect Asphalt
Here’s just a few effects that snow has on your asphalt pavement:
- Snow Plows – Snow plows scrape the pavement, causing minor damage to the pavement. If you notice scrapes in your pavement once the snow melts, contact Polyjacking.com to seal coat the pavement.
- Melting Snow – One of the advantages of asphalt pavements is that they absorb heat and melt the snow. The downside is they lead to rapid water runoff, creating flooding and pooling water. Over time, this causes cracks throughout the surface.
- Freezing and Thawing – Because the temperature fluctuates throughout the winter months, cracks develop in asphalt pavement. They get bigger and spread, causing voids underneath the surface. With proper maintenance, you can prevent damage from freezing and thawing cycles.
- Deicers – Salt, potassium acetate, and other deicing agents should be used sparingly due to an increase risk of damage to asphalt surfaces. They are dangerous to the environment surrounding the paved areas, including vegetation, pets, runoff water, and flooring in your home. It’s important to use deicing mixes that are environmentally friendly.
To prepare for winter, seal any cracks and holes that are less than a half inch. This will prevent runoff and smooth the surface. Larger holes need to be filled with gravel, then sealed. Polyjacking.com can always help when repairing or preparing your asphalt. We offer professional and efficient concrete repair services to keep your maintenance budget down and minimize asphalt damage.
For sunken asphalt, we can lift and level the surface back to normal by injecting polyurethane underneath the surface. As polyurethane expands, it fills voids and lifts the surface to the desired height. Because polyurethane stabilizes loose soils, it prevents future settlement and cracking. If you have any questions about polyjacking or concrete resurfacing, contact Polyjacking.com today. We’ll restore your sinking asphalt back to normal.
Uneven Concrete and Tripping Hazards
Do you have an uneven concrete sidewalk or walkway on your property? It’s probably a good idea to get it fixed. After all, it will only get worse over time, creating a trip hazard and serious liability lawsuit. In fact, more cities are mandating leveled sidewalks and requiring homeowners to pay for them.
So what causes uneven concrete? Due to maturing tree roots and weak soils, the majority of concrete slabs will encounter settlement. In many cases, water is the culprit to expansive soil problems. It weakens the soils, causing cracks and settlement underneath the slab. Polyjacking keeps water away from the slab and prevents future settlement.
The professionals at Polyjacking.com can lift and level sunken concrete for the following applications:
- Garage floors
- Pool decks
The concrete raising process involves drilling unnoticeable 5/8 inch holes in the affected area of the concrete. Polyurethane is pumped into the drill holes. The poly foam expands and fills in voids under the slab. Finally, the slab is raised back to its original position and the holes are patched. Since polyurethane cures within minutes, the area is ready for traffic the same day and your liability is gone.
Concrete Leveling Prevents Trip Hazards
Tripping hazards can occur on any uneven concrete surface at universities, schools, hospitals, businesses, and any property. With polyjacking, injuries can be prevented to reduce liability. Contact Polyjacking.com for effective concrete leveling in the Kansas City and St. Louis area.
Concrete Slab Problems and Troubleshooting Tips
Concrete slab problems are a common occurrence in basement floors, garage floors, and other concrete surfaces. They go ignored for years until the surface gets worse. Without necessary repairs, cracks may spread and get larger allowing water to seep through the surface. If you know what to look for, most concrete slab problems can be easily identified. Some common slab problems include the following:
- Cause: Plastic shrinkage cracks are very thin cracks that do not affect the condition of the slab. They are usually a cosmetic issue caused by drying and shrinking of the concrete surface. They develop in the first few hours after concrete replacement and before the job is complete. This usually occurs when the concrete is still plastic and shrinks due to rapid moisture loss.
- Solution: There is no easy fix, but plastic shrinkage cracks can be prevented. Make sure the surface does not dry too quickly. Also, use lower water content mixes to prevent too much shrinking.
- Cause: Dusting is chalking at the surface of the concrete slab and can be rubbed off onto your finger. It can be easily damaged by traffic use or with a stiff bristle broom. Dusting can be caused by finishing, floating or troweling of condensation moisture from humid air on cold concrete.
- Solution: Grind or seal the concrete floor surface to remove the top few millimeters of the surface. It will also remove rough spots and any surface indentations from the concrete slab.
- Cause: When looking for scaling, look for loss of mortar. Scaling is caused by deicing salts, freezing and thawing cycles, hard troweling, improper curing or low air content in the concrete mix.
- Solution: It can be prevented by providing a good air void system and making sure salts do not get on the surface until the concrete has dried for at least 30 days. Scaling can also be fixed with concrete grinding. This method removes the top layer of the surface and level uneven concrete.
- Cause: Serious cracking in a concrete slab is an indication of excess water and soil settlement beneath the concrete slab. These cracks are far more serious than surface shrinkage cracks and could lead to the foundation slipping or becoming uneven.
- Solution: These can be fixed temporarily with polyurethane injections directly into the crack. For permanent repair, it is better to inject a polyurethane foam beneath the entire surface to not only fill in cracks but stabilize the soil and fill in voids.
Sinking or Settling
- Cause: By the time your concrete slab has started sinking, settling, or becoming uneven, it is a certain sign that the soil beneath the concrete has settled or developed voids in it.
- Solution: The best long-term solution is polyjacking, which lifts and levels the concrete and has other benefits.
Why Choose Polyjacking for Concrete Slab Repairs?
If your concrete slab has severe cracks or is sinking, settling, or shifting, Polyjacking.com can provide the best long-term solution for concrete repair, polyjacking. We perfected the polyjacking method and actually developed the term. Polyjacking is a process of injecting polyurethane foam beneath a concrete surface to lift, level, and stabilize the concrete slab. In addition to leveling it, the process also seals cracks, fills voids, and reinforces the soil beneath the concrete. It takes only minutes to complete and prevents any further problems for years to come. We’ve won Angie’s List Super Service Award and other awards for our outstanding customer service. Contact us today for a free estimate!
Icy, Winter Months in Kansas City and St. Louis
The winter months have set in and there are a lot of ice and snow in the St. Louis and Kansas City area. Ice and snow can damage your concrete around your home or business. As it gets into the pores, it causes the concrete to heave. Also, the effects of the freeze-thaw cycles will cause scaling, cracking and crumbling of the concrete.
Deicing chemicals that are used on concrete throughout the winter also cause damage to concrete. These chemicals cause loss of surface mortar on the concrete. When this happens, it is called scaling. Signs of scaling are easy to see as the concrete will become rough and flaky and may pit.
The winter months will also cause the concrete to crack. This is the result of freeze-thaw deterioration of the aggregate within the concrete. Water then gets into the cracks and accumulates. Then with the freeze-thaw cycles, the cracks will form.
Concrete is a porous material that absorbs water and as the water freezes it pushes the cement binder apart. The winters in Kansas City and St. Louis can be extremely hard on the concrete around your home or business. Let the Polyjacking.com, a division of Pro Foundation Technology, get your concrete back to its original level and repair any cracks that may have formed throughout the winter.
Concrete Repair Solutions
If you find that your concrete has been damaged by the freeze/thaw cycles that occur throughout the winter, we use high-density polyurethane foam to lift and level your concrete. We use the right poly equipment for the installation process. This method is relatively simple.
- A small 5/8″ hole is drilled through the affected concrete.
- The polyurethane foam is injected into the voids beneath the concrete. Polyurethane foam expands to over 20 times its liquid volume to entirely fill the void. This will raise the concrete back to its original level.
- Polyurethane foam also compacts and strengthens the base soil.
- After the injection, the holes are filled and the site is cleaned up.
- Due to the short hardening time of the polyurethane, the concrete surface can be used immediately after the repair is completed. This polyurethane foam is impervious to water, preventing future erosion problems.
Why choose Polyjacking.com for concrete repair? We take pride in the outstanding reputation we have established. We are committed to quality and we are long-standing members of the Home Builders Association and the Better Business Bureau. We will get your concrete it back to its original level and prevent future soil erosion beneath the concrete.
Extreme Weather in Kansas City
Residents in Kansas City, MO are used to snowy and icy winters. But what is different in the past few years is the extent and number of icy, snowy storms that this area has endured. These long, extended periods of ice and snow will effect your concrete and in the spring, you may see the damage that the harsh winter has caused.
When water freezes it expands, and adding the constant freeze-thaw cycles, with a lot of moisture, the potential for concrete damage increases. One of the effects that causes extreme weather conditions is d-cracking. D-cracks are closely spaced cracks along the joints of the concrete.
If you find concrete damage in the spring after the harsh extreme weather of the winter months, contact Polyjacking.com . We have the products and experience to get your concrete repaired in Kansas City, MO.
Concrete Repair Solutions
After the snow clears and you find that the extreme weather has caused concrete damage, Polyjacking.com can help get it back to its original level and looking like new again. The cost-effective method that we use for foundation repair is injecting a polyurethane foam into the concrete to fill the voids and lift the concrete. Polyjacking is simple and less disruptive than replacing concrete. Polyurethane trucks and the right equipment are used for the installation process.
- A small hole is drilled into the effected concrete.
- Polyurethane foam is injected into the hole and it expands to 20 times its liquid volume to fill the voids beneath the concrete entirely.
- The fast curing time allows the concrete to be used immediately after the repair is done.
- The hole is filled and the site is cleaned up.
Polyjacking.com has been in business since 1978 and are members of the Home Builders Association and the Better Business Bureau. Contact us for a free quote on any of your concrete repair needs in Kansas City, MO or the surrounding areas today!