Understanding concrete resurfacing

Why concrete resurfacing is not what you think and what to do instead

If you’ve ever searched for “concrete resurfacing,” you’re not alone. Many people use this term, hoping to find a way to refresh or repair old, cracked, or worn-out concrete surfaces without tearing them out entirely. However, at Pacific Surfacing we believe the term “concrete resurfacing” can be misleading, as it’s not technically a solution to the problems people typically associate with old or damaged concrete. In this article, we will break down why concrete resurfacing isn’t a true fix, what misconceptions surround the term, and explore the actual methods for restoring concrete surfaces.

What people mean when they search for “concrete resurfacing”

1. Restoring aesthetic appeal:
   • Many people search for “concrete resurfacing” when they want to improve the look of old or weathered concrete. This could mean hiding cracks, discoloration, or damage that has occurred over time.
2. Fixing structural problems:
   • Others are looking to repair more serious structural issues like cracks, pitting, or uneven surfaces. They may assume that “resurfacing” is a way to fix these problems without replacing the entire slab.
3. Cost-effective solutions:
   • The idea of “resurfacing” sounds appealing because it implies a cost-effective, less invasive process compared to full removal and replacement. Business owners may see it as a quick, affordable fix.

Why “concrete resurfacing” is misleading

1. Not a real structural solution:
   • When people talk about resurfacing, they often envision a process that fixes both the look and the underlying integrity of the concrete. However, surface treatments like coatings or overlays don’t actually solve structural problems. They may temporarily improve the appearance but won’t address deeper issues such as cracks or settling in the slab itself.
2. Temporary fixes:
   • Many resurfacing products are thin layers applied over existing concrete. These layers are not durable enough to last long-term, especially in areas exposed to heavy foot traffic, vehicles, or extreme weather. Eventually, the underlying damage will resurface, and the thin layer may begin to peel, crack, or wear away.
3. Cosmetic vs. structural repair:
   • Resurfacing typically addresses only the cosmetic aspects of damaged concrete. If the structural integrity of the concrete is compromised (e.g., large cracks, crumbling, or deep pitting), resurfacing will not be effective in providing a lasting solution.

What’s wrong with simply “resurfacing” concrete?

1. Cracks will return:
   • Concrete cracks due to a variety of reasons, including settlement, freeze-thaw cycles, or moisture damage. Resurfacing concrete doesn’t prevent these underlying causes from continuing. Without fixing the root of the issue, those cracks will come back, and the resurfaced layer will fail.
2. Bonding issues:
   • Resurfacing materials often have trouble adhering to the original concrete surface, especially if the concrete has been damaged, weakened, or contaminated by oil, chemicals, or water. If the bond between the new surface layer and the old concrete fails, the resurfaced layer will begin to chip or flake off, exposing the old concrete beneath it.
3. Increased maintenance:
   • A resurfaced layer may require more maintenance than new concrete. Once the resurfaced layer begins to wear down, it might need frequent patching or repairs to maintain the appearance and prevent further damage.

What should be done instead?

Instead of relying on “concrete resurfacing,” it’s important to address the specific problems with your concrete and choose a method that will provide long-lasting results. Here are some alternatives that work better than typical resurfacing methods.

1. Concrete repair

For minor issues like small cracks or pitting, concrete repair might be the best solution.

• Crack injection:
  • If cracks are the primary issue, crack injection with epoxy or polyurethane can fill and seal the cracks. This is a great option if you want to restore the structural integrity of the concrete and prevent further damage.
• Patching:
  • For smaller areas of damage or pitting, patching with concrete or specialized repair mortar can be an effective solution. This addresses localized damage without needing to replace the entire slab.

2. Concrete overlay

A concrete overlay can be a viable option when you want to improve the surface of your concrete while addressing some underlying issues. Overlays can be applied in thin layers to create a smooth surface, but they must be done correctly and used in the right situations.

• Benefits of overlays:
  • Overlays can enhance the appearance of your concrete by covering imperfections, and they can also add texture or color to your surface. They are ideal for people who want a new look without replacing their concrete entirely.
• Limitations:
  • Like resurfacing, overlays are only effective if the underlying concrete is sound. If the concrete has deep structural issues, an overlay won’t prevent future cracking or damage.

3. Concrete grinding

Concrete grinding is another method used to smooth uneven surfaces or remove surface imperfections.

• Smooth uneven surfaces:
  • If the problem is uneven concrete, grinding can help level the surface and make it safer and more aesthetically pleasing.
• Polish and restore:
  • Grinding can also polish and restore the appearance of worn or stained concrete, creating a smooth and durable finish. This is ideal for large commercial spaces where looks and durability are both essential.

4. Full concrete replacement

In cases where the concrete is beyond repair or if large sections have significant structural damage, full concrete replacement is often the best long-term solution.

• When to replace:
  • Full replacement is recommended if the concrete has widespread cracking, sinking, or if the damage extends into the sub-base. In these cases, simply resurfacing or overlaying the concrete would be ineffective.
• Long-term benefits:
  • Although replacement is more expensive upfront, it provides a brand-new, structurally sound surface that will last for decades. This eliminates the need for frequent repairs and maintenance down the road.

Considerations when deciding what to do

1. Severity of damage:
   • Always assess the severity of the concrete’s damage. If it’s primarily cosmetic, a surface treatment like an overlay or patching may be sufficient. However, if there are deep cracks, uneven surfaces, or serious wear, replacement or a more thorough repair is likely necessary.
2. Budget:
   • Your budget may also play a role in your decision. While resurfacing may seem like the cheapest option, it’s often a temporary fix that leads to more costly repairs in the future. A more comprehensive solution, like crack repair or replacement, may cost more initially but will save money in the long run.
3. Usage and traffic:
   • Consider how much traffic the area sees. High-traffic areas require durable solutions, such as grinding or replacement, while low-traffic areas may fare well with simpler repairs or overlays.

Conclusion

While “concrete resurfacing” is a popular search term, it’s not a true long-term solution for most concrete issues. Many people mistake resurfacing as a fix-all solution, but it typically addresses only surface-level problems and doesn’t solve underlying structural issues. Instead, consider more durable and appropriate options like concrete repair, overlays, or even full replacement to ensure the longevity of your concrete surfaces. Understanding these alternatives will help you choose the right solution for your needs and avoid costly mistakes in the future.