Concrete as a material is quite robust, but it is not immune to damage. Eventually, it may crack due to changes in weather conditions, excessive weight, or settlement. These cracks can be an eyesore and if not well repaired, they could get even worse. These cracks can be repaired without having to be a professional. It is possible to renovate your concrete surfaces and give them a new look by using simple materials and without much time.
In this guide, we will help you understand each important aspect of how to repair cracks in concrete?
Identifying the Cracks
First, you have to determine the nature of the crack that is, whether it is active or dormant and whether it is a major or a minor crack. How big is the crack: a small crack, a medium crack, or a large crack? The first type of crack is the hairline crack which is very thin and can be repaired easily. Medium cracks are usually slightly wider and may require more attention than narrow ones. If the cracks are big enough then there might be something more serious and it is advisable to seek the help of a professional. Understanding the type of crack that has occurred will assist in determining the best way to repair it.
Gathering Materials
You will need a few materials and tools. Having these items ready makes the job smoother.
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A wire brush
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A broom or vacuum
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Concrete cleaner
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A chisel and hammer (for larger cracks)
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A concrete patching compound or epoxy
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A putty knife or trowel
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Water and a hose
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Safety gloves and goggles
Cleaning the Crack
First of all, it is necessary to remove dirt from the crack. Scrape off the surface of the existing concrete with a wire brush to remove any loose concrete, dirt or debris. For wider cracks, the use of a chisel and hammer is appropriate to remove the loose material. This step is important because patching material requires a clean surface to bond well with the surface that is to be patched. Finally, you can use a broom or vacuum cleaner to sweep off the debris after brushing. If the crack is dusty, wash it with water and wait for it to dry up before proceeding with the rest of the process.
Applying the Concrete Cleaner
This is done by using a concrete cleaner on the crack. This also aids in cleaning the area of any remaining debris and this helps the patching compound to stick well. It is important to make sure that you follow the instructions that are given on the label of the cleaner that you intend to use. Often, you spread it, use a brush to wash it, and wash it off with water. Allow the crack to dry up before you proceed to the next step.
Filling the Crack
For small to medium cracks, you can apply a concrete patching compound. In the case of wider cracks, you may require concrete mix or epoxy to close the wide gap. Follow these steps:
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Mix the Compound: Patching compound or epoxy: Patching compound or epoxy should be applied according to the instructions on the label. Stir it until it becomes a thick paste.
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Apply the Compound: When applying the compound, it should be done using a putty knife or trowel to ensure that it is pushed into the crack. Begin at the beginning and move towards the end. Place the compound firmly into the crack to ensure that it reaches the bottom of the crack. Scrape the surface of the drywall with the putty knife.
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Let It Dry: Let the compound dry as per the instructions from the manufacturer. This usually takes several hours, depending on the nature of the work and how busy the workers are. It is advisable not to walk or place heavy objects on the repaired area until the epoxy has cured.
Sealing the Concrete
Following the crack repair, it is advisable to seal the concrete surface to prevent water from penetrating through the cracks. Sealing helps prevent it from being affected by other damages in the future. Select the right concrete sealer for your concrete type and use it by following the guidelines provided. In most cases, you use a brush or roller to apply the sealer and then wait for it to dry. Sealing also not only helps to preserve the concrete but also improves its look.
Finishing Touches
After you are done with applying the compound, you may find it necessary to smoothen the area by sanding it to ensure it is even with the rest of the concrete. Wear gloves and use fine-grit sandpaper and rub the surface gently. Sweep with a broom or vacuum any debris that may be on the surface of the furniture.
Regular Maintenance
To avoid future cracks, ensure you carry out maintenance work as a regular basis. Ensure the concrete surface is clean to remove any dirt or debris that may be on it. Any small cracks that you notice should be repaired immediately. It is also important not to place heavy items on the concrete as this might put pressure on the concrete. Water damage is also another cause of cracks on concrete surfaces; therefore, proper drainage around the concrete surfaces is essential.
Concluding
It is easy to repair cracked concrete and this is due to the following reasons. As a result, with the right type of crack identified, and the right materials gathered, you can repair your concrete surfaces. The damages can be avoided through proper maintenance and sealing of the building’s surfaces. There is no need to let your concrete look bad and wear out quickly; it only takes a little work to maintain it properly. Hiring a professional team can save you costs and time for the best concrete repair services.