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  • Writer's pictureBidcore Construction

Having Crack Problems ? Cracking Concrete Driveways Explained.

Concrete driveways are a popular choice for homeowners due to their durability and low maintenance requirements. However, even the strongest concrete can crack over time. Understanding the common causes of concrete driveway cracking can help you prevent or address these issues.

1.) Ground movement: Concrete driveways are subjected to constant pressure from the weight of vehicles and the shifting of the ground beneath them. This can cause cracks to form if the soil is not properly compacted or if there is poor drainage.

2.) Freeze-thaw cycles: Concrete is sensitive to temperature changes. If the driveway is not properly sealed, water can seep into the concrete and freeze, causing the concrete to expand and crack.

3.) Poorly mixed concrete: If the concrete is not mixed properly, it can become weak and prone to cracking. This is particularly true for driveways that are poured in multiple sections.
a pile of stone rubble

4.) Lack of control joints: Control joints are pre-planned grooves cut into the concrete to allow for expansion and contraction. If they are not properly spaced, the concrete can crack.

5.) Improper curing: If the concrete is not cured properly, it can become weak and prone to cracking. This can happen if the concrete is poured during extreme temperatures, if it is not covered to protect it from the sun and wind, or if it is not watered regularly.

Preventing concrete driveway cracking is key. Proper compaction of the subgrade, proper mixing of the concrete, proper curing and control joint planning can all help prevent cracking. Sealers can also be applied to the surface to protect it from moisture and freeze-thaw cycles. If cracks do appear in your concrete driveway, it's important to address them as soon as possible. Minor cracks can often be repaired with a concrete filler, while more extensive cracks may require more extensive repairs or even replacement. If you have any doubts, you should consult a professional.

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