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The most commonly accepted way to protect structural steel on bridges is with liquid applied coatings (paint). The current life expectancy for field-applied protective coatings (maintenance painting) is about 20 years in snow/ice and marine areas. Most bridge owners use a remove-and replace strategy for maintenance painting, with unit costs usually in excess of $10.00 per ft. The cost of maintaining a protective coating during the service life of a bridge may approach the bridge’s original construction costs.
The most commonly accepted way to protect structural steel on bridges is with liquid applied coatings (paint). The current life expectancy for field-applied protective coatings (maintenance painting) is about 20 years in snow/ice and marine areas. Most bridge owners use a remove-and replace strategy for maintenance painting, with unit costs usually in excess of $10.00 per ft. The cost of maintaining a protective coating during the service life of a bridge may approach the bridge’s original construction costs. Extending the service life of protective bridge coatings is critical for maintenance managers given that funding is becoming more limited.
This summary is a look at implementable work and a gage of the value of future work. The strategic implementation of Surface Preparation and Coatings Automation, Standardization and Digitization of Visual Inspection, and Surface Preparation and Coatings Training Certification Program could provide cost and schedule savings. Optimizing Power Tool Surface Preparation potentially will increase Shipbuilders safety, while reducing material and labor costs.
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This paper identifies the unique steps taken to safely remove lead-based paint from a major highway/commuter railroad bridge connecting Philadelphia, Pennsylvania with Camden, New Jersey, followed by the application of a new long lasting protective coating system. The paper addresses project phasing by the owner and coordination with the commuter train to keep costs down and to minimize inconvenience to the public.
A bridge coatings specification can be a complex and sometimes confusing document to navigate through. Yet it is regarded as the rulebook for quality control and quality assurance personnel responsible for inspecting the quality of work. An inspection plan is a tool that can make the process of understanding the inspection checkpoints invoked by a bridge coating specification more streamlined and can be a key communication tool for contractor and inspection personnel.