Concrete is used throughout the built environment, including structural and facade elements. Typically reinforced with steel, concrete is durable when properly designed and maintained. Over time, concrete can deteriorate when exposed to weather, moisture, deicing salts, or improper previous repairs. This presentation discusses the basics of concrete and cement material properties, as well as common deterioration mechanisms of various types of existing concrete structures. Condition assessments are critical to understanding the damage, so that repairs address the root cause and do not contribute to further deterioration. This presentation will go over important details in the preparation, selection, and installation of repairs and illustrate various options available. Proper diagnoses and implementations of repairs lead to long-term durable repairs and prolonged life of concrete buildings. Craftworkers that are trained and educated in concrete repair and rehabilitation are assets to project teams and play a significant role in successful concrete repair projects.

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