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| 1. |
Clean the crack by removing all loose dirt and chunks of concrete with an awl or hook. If there are larger chunks of concrete you can use a mallet and chisel to loosen them. (Make sure to wear eye protection.) |
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| 2. |
Use a broom or a stiff brush to remove small pieces of concrete and dirt. |
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| 3. |
Then spray the crack with a garden hose using a spray attachment to remove any remaining debris. It is important to clean the crack well so that the patching material will adhere to it. |
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| 4. |
If there is oil in the crack, use detergent to scrub it out then rinse well. |
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| 5. |
Allow all surfaces to dry before continuing with the patching process. |
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| 6. |
Cracks that are less than ¼" are generally filled with sealants that come in a caulk gun tube. If you are using filler from a caulk container or tube, squeeze the filler into the crack until it begins to overflow. Then smooth it out using a metal or plastic scraper. It may be necessary to repeat this process to ensure that you are filling the crack completely. |
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| 7. |
Cracks that are between ¼" and ½" are generally filled with premixed mortar or sealants that comes in a can or plastic jug. Shake or stir the product well before using. `According to directions on the product, squeeze the filler into the crack until it begins to overflow. Then smooth it out using a metal or plastic scraper. It may be necessary to repeat this process to ensure that you are filling the crack completely. |
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| 8. |
Cracks that are larger than 1/2" must be filled with premixed concrete which comes is bags weighing 60 lbs or 90 lbs. Mix your material as the manufacturer recommends, and pour this material into the crack. |
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| 9. |
Let the mortar set up for about an hour before using a trowel to remove any excess. |
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| 10. |
Curing the Repairs.
Allow the repaired areas to dry completely which may take several days. Make sure to keep it moist by lightly misting the area with a garden hose and keeping it covered with a plastic sheet. A slow cure will result in stronger concrete. When the concrete has cured, apply a water seal with either a roller or a sprayer. |
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