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sakrete10 · 4 years
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How to Repair Cracks in Concrete
When cracks develop in concrete, they might need to be repaired to ensure the structural stability of the concrete. There are various ways that concrete cracks might be resolved with the right method depending on the type, size, and cause of the crack. Some of these methods can be easily accomplished while others might need the assistance of a professional. Here are some of the most common methods if you’re interested in how to repair cracks in concrete.
Epoxy Injection
If you’re dealing with a narrow crack, an epoxy injection might be the right method to use. This type of concrete crack repair has been done on various structures, such as buildings, bridges, and dams. However, it can also be done on smaller concrete structures or slabs. This type of concrete crack repair involves establishing entry and venting ports at close intervals along the cracks. The crack is sealed on its exposed surface and then epoxy is injected under pressure. It’s important that the cause of the crack is resolved before the injection occurs. Otherwise, the crack will reappear. This type of crack repair is complicated and should be done by a trained professional.
Routing and Sealing of Cracks
If it’s not necessary to repair the structural stability of the concrete, the routing and sealing of cracks is an option. This type of repair involves enlarging the crack on its exposed face. The crack is then filled and sealed with a joint sealant. This is a common technique as it’s much easier than an epoxy injection. The reason why it’s easier is that the structural stability of the concrete doesn’t have to be corrected and it’s most commonly done on flat, horizontal surfaces like floors and pavements.
Stitching
The stitching of a concrete crack is most commonly done when the tensile strength of the concrete must be reestablished. These cracks are usually major cracks that are more vulnerable to rain, snow, and debris. Holes are drilled into the concrete and staples are entered. The holes are filled with the use of either non-shrink grout or an epoxy resin-based bonding system.
If cracks have developed in your concrete, you might be concerned about its structural stability. While some cracks might cause structural issues, others are not as much of a concern. There are various ways to repair these cracks but each method is designed to fix specific problems.  Understanding how to repair cracks in concrete will allow you to determine which type of repair is right for you.
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