A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Challenges of Achieving Compatibility in Concrete Repair
Vaysburd et al cite that volume changes, permeability, and electrochemical activity are the challenges in achieving compatibility in concrete repair. During the last 25 years, our industry has gained considerable knowledge of the engineering aspects of concrete repair technology. Widely and generally used expert recommendations and specifications for concrete repair--"the law of the land" in many agencies and jurisdictions--now set forth what must be done to avoid trouble in repair performance. Nevertheless, we are still facing instances of gross deficiencies and an inability to meet the objectives of the designed service life for repaired structures. Among the factors affecting compatibility, electrochemical compatibility is the most complex and critical factor for adequate performance and durability of concrete repair projects. Currently, unless a thorough cathodic protection system is implemented, the risk exists of corrosion recurring and even accelerating due to electrochemical incompatibility between the "old" and "new" phases of the system.
The Challenges of Achieving Compatibility in Concrete Repair
Vaysburd et al cite that volume changes, permeability, and electrochemical activity are the challenges in achieving compatibility in concrete repair. During the last 25 years, our industry has gained considerable knowledge of the engineering aspects of concrete repair technology. Widely and generally used expert recommendations and specifications for concrete repair--"the law of the land" in many agencies and jurisdictions--now set forth what must be done to avoid trouble in repair performance. Nevertheless, we are still facing instances of gross deficiencies and an inability to meet the objectives of the designed service life for repaired structures. Among the factors affecting compatibility, electrochemical compatibility is the most complex and critical factor for adequate performance and durability of concrete repair projects. Currently, unless a thorough cathodic protection system is implemented, the risk exists of corrosion recurring and even accelerating due to electrochemical incompatibility between the "old" and "new" phases of the system.
The Challenges of Achieving Compatibility in Concrete Repair
Alexander M Vaysburd (author) / Benoît Bissonnette / Kurt F von Fay
2017
Article (Journal)
English
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