Common Concrete Repairs

Many common concrete problems can be repaired. This can include surface dips and texture issues, void filling and slab lifting.

Concrete Repairs

The key to long term durability is the concrete repair material. This includes its physical properties such as compressive strength, cracking resistance (drying shrinkage), permeability and freeze-thaw durability. To learn more, visit

It is also important to select the proper installation techniques for each repair method. This ensures that the repairs are durable, cost effective and safe to perform.

Concrete cracks can be unsightly and often are an indication that the concrete needs to be repaired. Cracks in concrete can be caused by structural problems, but they are also commonly a result of settlement or poor construction practices. Regardless of the cause, it is essential to get the cracks repaired as soon as possible to minimize the risk of further damage and reduce the cost of repair.

Most minor cracks can be repaired with a simple concrete patching compound that is mixed according to manufacturer instructions. Using a trowel, the crack filler is applied to the concrete surface and then smoothed to make sure it is even with the surrounding concrete. The compound will then need to be allowed to cure before any foot traffic is permitted on the area.

Larger cracks, however, can be much more difficult to repair. It is best to consult with a concrete contractor to assess the situation and determine the most appropriate repair method. They may recommend resurfacing the concrete, removing and replacing damaged sections, or in extreme cases, they may recommend excavation and replacement of the concrete.

The width of the crack will typically dictate the repair method used to fix it. Small cracks, less than a quarter of an inch wide, can be repaired with a silicone sealant, while moderate cracks of one-eighth to a half-inch should be chiseled out to widen the opening and removed any loose material.

Cracks that are wider than a quarter of an inch should be filled with a masonry crack filler. This product is available in latex or polyurethane formulations. Both are good options for repairing cracked concrete, but the polyurethane products offer superior performance and longevity.

It is important to understand that cracks are a normal part of the curing process for new concrete and that they will shrink as the concrete sets. Cracks that are a result of poor construction or soil conditions should be evaluated and corrected as soon as possible to minimize the impact on the integrity of the concrete.

Depending on the size, location and depth of the crack, a professional may recommend the use of polyurethane crack injection. This method involves injecting a highly water reactive resin into the crack under pressure. The resin will encapsulate the crack and form a strong, flexible seal that prevents future water leaks. This repair works well with both active and dormant cracks.


A leak in a concrete slab can quickly erode the material and cause serious damage to your home. It’s a common problem that can be caused by many factors, including water infiltration, soil movement, aging of the concrete and underlying materials, and more. In some cases, a leak can be difficult to detect and may go unnoticed for years, which can cause further damage and lead to expensive repairs.

Luckily, there are several things you can do to spot a leak in concrete. Aside from observing visible signs of water damage in and around your property, you can also listen for a constant sound of running water. If you hear this noise regularly, it could be a sign that there is a leak under concrete.

Another way to spot a leak is by noticing if there are any unusually warm areas in your property. Hot water lines often leak because they expand when they heat up, causing them to rub against the concrete underneath, and this can cause serious damage over time. If you notice any unexplained warmth in your property, it’s worth calling a plumber to investigate.

If you suspect you have a slab leak, it’s important to turn off your water supply and get in touch with a professional plumber right away. These professionals will use acoustic, sonic, pressure, electromagnetic, and gas tracer leak detection tools to locate the source of the leak in your plumbing lines and repair it before further damage occurs.

Slab leaks are more common in older homes that use copper or galvanized steel pipes because these materials can corrode. In addition, leaking water can have a number of causes that are outside of your control, including underground streams, earthquakes, or shifting soils that shift and resettle plumbing lines, causing them to crack and leak.

Once a plumber has located the source of the leak, they can make the necessary repairs and replace any damaged pipe materials. They will also inspect your plumbing for further problems, such as clogged lines, and can recommend a waterproof concrete sealer to prevent future leaks from occurring. This product works by reacting with moisture in the concrete to create a white, flexible foam that seals cracks and acts as a barrier against water infiltration.


Delamination is a concrete surface problem caused when the top layer of the concrete begins to break down or separate from the underlying concrete. This can happen for many reasons. Aging and wear is one cause, as the concrete erodes from foot traffic or equipment impact. Improper construction practices, such as insufficient compaction during concrete placement or improper curing can also lead to delamination. Corrosion of the steel reinforcement within the concrete is another common culprit, as the corroded iron takes up space, which pushes the concrete apart and creates cracks and delamination.

The first step in repairing delamination is to identify the affected area. This can be done by marking out the areas of concern using straight lines. It is recommended to use a dry diamond core drill for this purpose. Once the affected areas are identified a separation barrier can be applied to prevent the new concrete overlay from becoming delaminated in the future. This can be made from a number of materials, such as crushed stone, sand, plastic sheets or tar paper.

Once the delamination is isolated, it is possible to patch the area with a suitable resurfacing product, such as Top’N Bond, which is specifically designed to bond with sound concrete and create a new surface. This is a good option for small areas of delamination, especially where the damage is confined to the surface layer.

For larger areas of delamination, a full-depth repair may be needed. This involves removing the damaged concrete and thoroughly cleaning the underlying concrete. Shotblasting, hydrodemolition or grinding are often used to remove the concrete and achieve a clean surface for patching. The corroded steel reinforcement should be cleaned and coated with a rust inhibitor before the patching is installed.

Regular maintenance and inspection can help to prevent delamination from occurring in the first place. Regular testing of the concrete can identify issues such as cracks, spalling, abrasion or delamination and allow for preventative measures to be put in place to reduce the risk of these problems occurring. The use of a high-quality water vapor barrier can also reduce the amount of moisture that infiltrates the concrete, which is a leading cause of delamination.


Concrete structures are subjected to daily wear and tear, abrasions, impact, and other factors that erode the surface of the concrete. This erosion, if left unchecked, not only diminishes the aesthetic appearance of the concrete but can also lead to structural damage. The good news is that abrasions can easily be repaired with the right products and techniques.

The first step in repairing concrete damage is to assess the cause of the damage. Then, you can find the right repair solution to fix the problem and prevent it from happening again in the future.

Abrasions to concrete surfaces can be caused by a variety of sources, including machinery, vehicle traffic, and foot traffic. The most common abrasions to concrete are those from vehicles, as they rub against the concrete surface and cause it to lose its luster and strength. Abrasions can also be caused by pedestrians walking over the concrete, as they use their shoes to scrape off the surface, which can leave a rough and scratchy texture.

One of the best ways to repair these abrasions is with a polyurea-based coating. These coatings are among the newest on the market and are extremely fast-setting, making them ideal for projects that require a quick turnaround time. Additionally, these coatings have great resistance to abrasions and are very stable under UV light.

For larger areas of abrasions, you can use epoxy-resin patching materials. When using these products, it’s important to mist the existing concrete with water before applying the patching material. This helps ensure that the new concrete patch will adhere properly to the existing concrete. It will also help ensure that the new concrete is hydrated so that it can hold up against the impact of heavy vehicles and foot traffic.

Another option for repairing concrete abrasions is with hydraulic cement. This is a liquid cement that can be used to fill cracks. It dries quickly, and it can be used to fill in deep cracks. It’s also useful for repairing abrasions, as it has good bonding strength and can be used to fill large areas.