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Sustainable concrete repair products can extend the time in between repair cycles and increase the service life of a structure. This will discuss the fact that based on 10+ years of field and laboratory testing, organofunctional silane corrosion inhibitors are effective at corrosion mitigation, thus decreasing the frequency and extent of repairs. Evaluation on new concrete also showed a predicted increase in time to corrosion initiation when compared to untreated reinforced concrete specimens. Modeling results were verified in a 2-year laboratory study.
Successful repair material and coating applications are dependent on proper concrete surface preparation. Different surface preparation technologies and quality control methods are reviewed to increase the successful application of materials applied to existing concrete surfaces.
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Concrete is the second most common man-made material after potable water, yet it is a complex material that is poorly understood. Steel reinforcement is added to improve the concrete's tensile strength and ductility and is initially protected by the high concrete pH and depth of cover concrete. Eventually, due to the ingress of deleterious ions, lowering of the pH from carbonation, or electrical potential changes within the steel, corrosion will occur.