Urethane Caulk- As I mentioned above, cement patches are rigid and are not recommended for areas subject to frost movement because they will fail. Below is a description of the general products and typical installation methods, along with some recommended applications. The two main methods of repairing concrete cracks are usually epoxy injection, or with a flexible self-leveling or toolable urethane caulk. However, if the cause of these cracks are due to sunken concrete or concrete settlement, you may be looking at the more cost-effective approach of mudjacking far more affordable than concrete replacement. If there is a significant amount of damage to the concrete, your best bet at that point may be to be honest with yourself and admit that concrete replacement would be the best “long term” solution.
#Concrete slab crack repair with shifting install#
Take the items listed below into consideration first before attempting to repair any minor cracking in concrete.ġ) Is the concrete indoors? or outdoors in a northern climate and subject to frost movement?Ģ) What caused the concrete to crack in the first place? Is it an outside concrete area that was installed without proper expansion joint placement? Was the concrete poured on uncompacted soil and has settled? or is a water drainage issue that is causing frost movement? If you’re dealing with concrete lifting or sinking, time to call in a professional to address the cause, not the symptoms!ģ) What is the width of the crack or cracks and how much damage is there to the concrete? If the crack is hairline, you are more than likely better off living with the crack, because it is usually necessary to grind the crack open and install a product that will be more visible than the crack itself.
#Concrete slab crack repair with shifting Patch#
Keep in mind that in any zone subject to frost movement, patching the crack with cement is never a practical solution and will not usually last longer than the first frost cycle, resulting in either a crack reappearing through the patch, or the patch popping back off.
You need to take into consideration the possibility, or probability of future movement and stresses to the concrete. Before attempting to effectively repair any cracks in concrete, you first need to diagnose the reason for the failure. There are numerous reasons from cracking, with the most common ones being concrete sinking, improper expansion joint placement, or the lack of it, or unlevel concrete.
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