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This paper discusses the material selection, fabrication, and construction of Virginia’s first corrosion resistant ASTM A1010 plate girder bridge.
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Lightweight structural composites were processed using a melt approach. Microstructural characterization was conducted using optical and scanning electron microscopy. Phase determination was carried out using X-ray diffraction.
Qualified U.S. Navy nonskid coatings are two-component (2K) epoxy-based systems that contain various sizes of aggregate. Once mixed, these highly viscous coatings are applied using a napless roller to generate a “peak and valley” profile that provides skid/slip-resistance when cured. The roll-application process is slow and inconsistent, and appearance is often determined by experience of the applicator.
For several decades, engineered coatings have been used to protect steel from corrosion. Many formulas were made and tested for their ability to prevent corrosion. Changes in the formulas would include different resins, pigments, solvents and additives. In this paper, we will talk about three specific pigments, which are also commonly referred to as reinforcing pigments.
Fiber-reinforced polymer (FRP) equipment has been used in a variety of chemical industries for over 60 years. It is critical to choose the correct FRP material for the specific chemical environment. In the chemical processing industry, vinyl ester resins are used in a variety of applications including strong acid and caustic environments, chlor-alkali environments, chlorine, bleach, and fertilizer applications. FRP equipment is used in the oil and gas industry to handle crude oil, fire water storage and underground fuel storage. Regardless of the chemical application, the process for evaluating the resin involves specific testing per ASTM C-581[1], Standard Practice for Determining Chemical Resistance of Thermosetting Resins Used in Glass-Fiber-Reinforced Structures Intended for Liquid Service.
The Federal Highway Administration has a top-level technology goal targeted toward the development and deployment of the “Bridge of the Future.” This is a conceptual short span bridge that demonstrates significant improvements over the current state of the practice – particularly with regard to ease and speed of construction and long-term durability.