You just had new concrete poured. It looked great at first—smooth, clean, and solid. But now, only weeks or months later, you’re seeing it flake and peel. So, what went wrong?
Concrete flaking, often referred to as “scaling” or “spalling,” is when the top layer of your new concrete begins to chip away. This can be frustrating, especially when it’s a fresh surface. Here are the most common reasons it happens and how to prevent it in the future.
1. Water Issues at the Surface
Too much water in the mix or added during finishing can weaken the surface of your new concrete. When there’s excess moisture, it causes the top layer to become less durable. As the concrete cures and dries, the weak surface begins to break apart.
2. Freeze-Thaw Cycles
If new concrete is poured late in the year and isn’t properly protected, it can suffer damage from freeze-thaw cycles. Water enters the surface, freezes, and expands, which can cause flaking. This is especially common in Kansas City winters.
3. Finishing Too Early
If the concrete is finished before bleed water has risen and evaporated, that trapped moisture can compromise the surface. Finishing too early seals in water and air pockets, making the top layer vulnerable to flaking later.
4. Improper Curing
Curing is one of the most important parts of any concrete job. Without proper curing, new concrete can dry too quickly, reducing its strength. A rushed cure means a weaker surface more likely to flake under stress or weather changes.
5. Using Deicing Chemicals Too Soon
Applying salt or other deicers to new concrete within the first winter can lead to flaking. The chemicals react with the surface and can cause early deterioration, especially when moisture is already present.
How to Prevent Concrete Flaking
- Ensure a proper water-cement ratio in the mix
- Wait to finish until bleed water has evaporated
- Use curing blankets or compounds to slow the drying process
- Avoid using deicing salts during the first winter
- Always hire a trusted, experienced contractor
At Burton’s Construction, we take every precaution to protect your new concrete from flaking and other premature damage. If you’re noticing signs of wear or have questions about your concrete project, give us a call. We’re here to help.
