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Various types of damage can occur on a concrete porch, which means different repair methods can be used to address them. Small cracks will require a different concrete porch repair process than chips, and larger cracks will require a different process from crumbling. In some cases, concrete porch repair may not be feasible and the entire porch may need to be demolished and rebuilt. Whenever a repair is necessary, it is vital that the person doing the repair first clean the affected area as thoroughly as possible to remove debris, grit, and anything else that can affect the overall finish of the project.
Small cracks can usually be addressed fairly easily, since they don't tend to cause structural issues. The concrete porch repair can be done using a latex cement mixture that can be bought at a hardware store. This mixture is a type of fill and adhesive that comes in two tubes or bottles; the contents should be mixed together according to the instructions on the bottle to get the strongest mixture possible. Before the latex cement is applied, it helps to moisten the concrete. Using a trowel or other flat tool, the person doing the concrete porch repair should press the latex cement into the crack as deeply as possible, then scrape off the excess with the edge of the trowel.
The same process can be used for concrete porch repair of larger cracks, though more cement will be necessary and all loose debris will need to be wire-brushed from the crack. It is best to apply several thin layers of the cement rather than one big application, as the thinner layers will encourage more strength and durability. Larger cracks must be assessed carefully before repair; if the crack has made the porch structurally unstable, applying latex cement will not be sufficient to conduct the repair.
Instead, a full or partial demolition may be necessary. Cracks that run all the way through the concrete porch may make the area structurally unstable and potentially dangerous, so a jackhammer or sledge hammer should be used to break up the concrete. Once the structure has been removed or partially removed, a new concrete slab will need to be poured. This process can be an in-depth one that will take several days to complete, so if the person doing the repair has never done such a project before, it is a good idea to seek professional advice.
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