Wide cracks in concrete can be a nuisance and an eyesore, but they can be easily repaired with the right materials. Patching compounds, epoxy adhesives, and concrete repair mixes are all suitable for fixing cracks in concrete. Depending on the size and depth of the crack, you may be able to repair it with a simple DIY method or you may need to call in a professional contractor. In any case, it is important to understand the different types of materials available and how to use them correctly.
When it comes to patching compounds, Sikadur Concrete Fix is a two-part epoxy adhesive and filler that can be used as a bonding bridge adhesive paste for concrete and most building materials. For smaller cracks, epoxy compounds, latex patching material, and mortar mixes are all suitable options. If the crack is larger or deeper, a standard concrete mix containing gravel works best. To begin the repair process, you will need to ensure that the area is free of dust, grease, and surface contaminants.
Once this is done, you can mix the concrete patching compound according to the manufacturer's instructions and apply it with a trowel. If you are using a resurfacing concrete mix, you will need to pour enough of it into a 5-gallon bucket to cover the area. It is also important to note that chlorides have been used in some cases to reduce the setting time of concrete. However, this can cause calcium hydroxide leaching which leads to a loss of strength and steel reinforcing bars rusting and building up.
This can eventually cause the concrete to crack. Finally, engineers note that small fractures in concrete can appear over time if the concrete has not been properly sealed. To prevent this from happening, make sure that your concrete is sealed correctly before applying any patching compound or repair mix.
