By Charles Brown, PCS, Greenman-Pedersen, Inc. and Paul Vinik, Florida DOT
Presented at SSPC 2017; Session: Bridge Painting and Protection; Session chair: Mark Hudson
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Approximately 30% of the bridges in the U.S. national bridge inventory have steel superstructures. When this type of superstructure is selected, the operating agency incurs an obligation to maintain the coating system to protect the steel from corrosion to obtain its optimum service life. However, recoating existing steel bridges is a large and costly task for transportation agencies. Many agencies are faced with significant challenges associated with balancing available funds in order to perform major rehabilitation, reconstruction and complete replacement needs required due to corrosion caused by failing coating systems. Agencies are anxious to identify improved coating and recoating methods that extend the service life of these structures and result in significant cost savings by reducing or eliminating the need to recoat.
This presentation documents the findings of the Scan Team and provides effective strategies and other specific information for use by facility owners in their preservation of coating systems for steel structures. These findings will result in substantial cost savings and significant extension of service life. The audiences for this information are state and local bridge inspectors, bridge designers, bridge maintenance personnel, materials engineers, coatings specifiers, and bridge preservation and management staff within state, local or other transportation agencies.
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