What is Spalling?

Concrete Spalling

Spalling is a common issue for concrete structures, particularly in harsh marine environments such as the Florida Keys. This phenomenon occurs when the concrete surface begins to deteriorate, leading to chipping, flaking, or peeling sections. In marine areas, the combination of saltwater and humidity can exacerbate the problem.

What Causes Spalling in the Florida Keys

The primary cause of spalling in coastal regions like the Florida Keys is the corrosion of embedded steel reinforcement bars within the concrete. When steel corrodes, it expands, exerting pressure on the surrounding concrete and causing it to crack and break away. The marine environment, with its high salt content and moisture, accelerates this process, making spalling a significant concern for the longevity and safety of concrete structures in the area.

The Importance of Timely Maintenance and Repair

Spalling not only affects the aesthetic appeal of structures but also poses safety risks due to falling debris and potential structural failure. It's crucial to address spalling promptly to prevent the spread of damage and to maintain the structural integrity of buildings and infrastructure. In the Florida Keys, where the marine environment is particularly aggressive, regular inspections and maintenance are essential to identify and repair spalling before it leads to more severe issues.

Repairing Spalling in the Florida Keys

Repairing spalling typically involves removing the damaged concrete, treating any exposed steel reinforcement to prevent further corrosion, and filling the area with a suitable repair material. In the Florida Keys, it's important to use materials and methods that are specifically designed to withstand the marine environment. This may include the use of corrosion inhibitors, sealers, and coatings that protect against saltwater and moisture.


In conclusion, spalling is a significant concern for concrete structures in the Florida Keys due to the harsh marine environment. Timely maintenance and repair, along with preventive measures, are key to mitigating the effects of spalling and ensuring the safety and longevity of these structures. Schedule a Free Consultation today

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