Seeing a crack in your driveway, patio, or sidewalk can be frustrating. While some concrete cracks are normal over time, others can be a sign of a larger problem.
Understanding what causes concrete to crack can help you know when it needs attention and how to prevent bigger issues.
Here are some of the most common causes of concrete cracks.
Concrete Shrinkage
Concrete contains water, and as it dries and cures, it naturally shrinks. This can sometimes cause small cracks to appear.
Shrinkage cracks are usually thin and may appear within the first few weeks after installation. Proper installation and curing can help reduce the chance of excessive cracking.
Changing Temperatures
Indiana weather can change quite a bit throughout the year. Hot summers, freezing winters, and repeated temperature changes can put stress on concrete.
Concrete expands when it gets warmer and contracts when temperatures drop. Over time, these changes can lead to cracks, especially if the concrete does not have the right control joints.
Poor Drainage
Water is another common cause of concrete problems.
If water collects underneath or around a concrete slab, it can weaken the soil supporting it. This may eventually cause the concrete to settle, shift, or crack.
Proper grading and drainage can help keep water away from your concrete and your home’s foundation.
Ground Movement
The soil underneath concrete can move for several reasons. Erosion, settling, moisture, and changes in the ground can all affect the stability of a concrete slab.
When the ground underneath moves but the concrete does not move with it, cracks can develop.
This is why proper site preparation is an important part of any concrete project.
Heavy Loads
Concrete is strong, but it still has limits.
Driving heavy vehicles onto a residential driveway or placing heavy equipment on a patio that was not designed for that load can put additional stress on the surface.
A properly designed and installed concrete surface should be able to handle the expected use of the property.
Poor Installation
The quality of installation can have a major effect on how concrete performs over time.
Problems with the soil preparation, concrete mix, reinforcement, finishing, or curing process can increase the risk of cracking.
Working with an experienced concrete contractor can help make sure the project is properly prepared and installed from the beginning.
How Can You Help Prevent Concrete Cracks?
You cannot always prevent every crack, but proper installation and regular maintenance can help reduce problems.
A few things that can help include:
- Make sure the ground is properly prepared before pouring.
- Provide proper drainage around the concrete.
- Use control joints where needed.
- Follow recommended curing times.
- Avoid putting excessive weight on the surface.
- Keep an eye out for small cracks and damage.
When Should You Have Cracked Concrete Checked?
Not every crack means that your concrete needs to be replaced.
Small surface cracks may only need minor repair or monitoring. Larger cracks, uneven slabs, sinking concrete, or cracks that continue to grow may need professional attention.
If you are not sure what is causing the problem, having a concrete professional inspect the area can help you determine the right solution.
Get Help With Your Concrete Project
Whether you are dealing with cracked concrete or planning a new driveway, patio, walkway, or other concrete project, proper installation matters.
McCaslin Concrete Contractors provides residential and commercial concrete services in Evansville, Newburgh, and surrounding areas.
If you have damaged concrete or are planning a new project, contact McCaslin Concrete Contractors for a free estimate.
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