Why Did My Concrete Crack? Is Cracking Normal in Colorado?
If you’ve noticed cracks in your concrete driveway, patio, or sidewalk, you might be wondering: Is this normal? Should I be worried? The short answer is yes, some cracking is normal, but certain types of cracks can indicate underlying problems. Let’s dive into why concrete cracks and when you should take action.
Why Does Concrete Crack?
Concrete is a strong and durable material, but it’s not flexible. Several factors can cause it to crack over time:
1. Shrinkage During Curing (Very Common)
Fresh concrete contains a lot of water. As it dries and hardens, some of this water evaporates, causing the concrete to shrink.
If the shrinkage is uneven, small cracks may form. This is completely normal and usually not a structural concern.
2. Freeze-Thaw Damage (Big Issue in Colorado)
Colorado’s climate sees dramatic temperature swings and plenty of freeze-thaw cycles.
When moisture seeps into concrete, it expands as it freezes, putting pressure on the material and causing it to crack over time.
3. Soil Movement & Settling
If the ground beneath your concrete shifts, the slab can lose support and develop cracks.
This is common in areas with expansive soils, which swell with moisture and shrink when dry.
4. Heavy Loads & Traffic
Driveways and sidewalks endure pressure from vehicles, furniture, and foot traffic.
If the concrete is too thin or lacks reinforcement, it may crack under excessive weight.
5. Lack of Expansion Joints
Concrete expands and contracts with temperature changes.
If proper control joints (planned cracks) aren’t included, the concrete may develop random cracks as it moves.
Is Cracking Normal in Concrete?
Yes—all concrete cracks at some point. However, the size, location, and type of crack determine whether it’s a problem:
✅ Hairline cracks (less than 1/8 inch wide) are normal and typically not a concern.
⚠️ Wide or deep cracks (larger than 1/4 inch) may signal structural issues or poor installation.
🚨 Uneven or shifting cracks can indicate soil movement and may require repair.
How to Prevent & Fix Concrete Cracks
✅ Use Proper Joint Placement
Control joints help direct cracking in straight lines, reducing random breaks.
✅ Seal Your Concrete
A high-quality sealer protects against moisture penetration and freeze-thaw damage.
Reseal every 2-3 years to maintain durability.
✅ Ensure Proper Drainage
Keep water from pooling around your concrete to prevent soil shifting and erosion.
✅ Repair Cracks Early
Small cracks can be sealed to prevent further spreading.
For larger cracks, resurfacing or patching may be needed.
Need Help with Cracked Concrete?
If you’re dealing with cracked concrete and aren’t sure what to do next, we can help! Whether it’s sealing, repairs, or a full replacement, our team offers expert concrete solutions to keep your surfaces strong and long-lasting. Contact us today for a free consultation!
