National Academies Press: OpenBook

Spot Painting to Extend Highway Bridge Coating Life: Volume 1: Guidance (2018)

Chapter: Abbreviations, Acronyms, Initialisms, and Symbols

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Page 71
Suggested Citation:"Abbreviations, Acronyms, Initialisms, and Symbols." National Academies of Sciences, Engineering, and Medicine. 2018. Spot Painting to Extend Highway Bridge Coating Life: Volume 1: Guidance. Washington, DC: The National Academies Press. doi: 10.17226/25089.
Page 71

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NCHRP Project 14-30 71 ABBREVIATIONS, ACRONYMS, INITIALISMS AND SYMBOLS ~ Approximately < Less than > Greater than µg/cm2 Micrograms per square centimeter µS/cm Microsiemens per centimeter ASTM ASTM International bar Bar (metric pressure) CFM Cubic feet per minute cm Centimeter CMM Cubic meters per minute DFT Dry film thickness DNR Department of Natural Resources DOT Department of Transportation EP Extraction procedure EPA Environmental Protection Agency ft. Foot in. Inch kg Kilogram kph Kilometers per hour L Liter lb. Pound Lux One Lumen per square meter m Meter micron One-millionth of a meter mil One-thousandth of an inch MIO Micaceous iron oxide MnDOT Minnesota Department of Transportation mph Miles per hour NCHRP National Cooperative Highway Research Program °C Celsius (degrees) °F Fahrenheit (degrees) PDSs Product data sheets PPE Personal protective equipment psi Pounds per square inch psi Pounds per square inch SDSs Safety Data Sheets SSPC The Society for Protective Coatings TCLP Toxicity characteristic leaching procedure TOW Time of wetness TSD Treatment, storage, or disposal UV Ultraviolet VAC Volts alternating current WFT Wet film thickness

Next: Appendix A: Instructions for Conducting Field Coating Condition Assessments »
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TRB's National Cooperative Highway Research Program (NCHRP) Web-Only Document 251: Spot Painting to Extend Highway Bridge Coating Life: Volume 1: Guidance provides approaches for employing spot painting in a cost-effective, safe, and environmentally compliant manner. Bridge coatings are the primary means of corrosion protection for steel bridges in the United States. Most bridge coatings tend to fail prematurely in localized areas and spot painting can be used restore the lost corrosion protection and extend the service lives of existing bridge coatings, often at a fraction of the cost of a complete bridge repainting. However, many state highway agencies do not perform spot painting primarily due to performance concerns and lack of familiarity with its proper utilization and execution.

The guidance is accompanied by NCHRP Web-Only Document 251: Volume 2: Research Overview provides the evaluation method for the guidance document.


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