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Suggested Citation:"Front Matter." National Academies of Sciences, Engineering, and Medicine. 2019. Guidelines for Detection and Remediation of Soluble Salt Contamination Prior to Coating Steel Highway Structures. Washington, DC: The National Academies Press. doi: 10.17226/25432.
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© 2019 National Academy of Sciences. All rights reserved. ACKNOWLEDGMENTS The research for this document was conducted through one or more programs administered by the Cooperative Research Programs (CRP) of the Transportation Research Board (TRB) of the National Academies of Sciences, Engineering, and Medicine:  Airport Cooperative Research Program (ACRP) research is sponsored by the Federal Aviation Administration (FAA).  Hazardous Materials Cooperative Research Program (HMCRP) research is sponsored by the Pipeline and Hazardous Materials Safety Administration (PHMSA).  National Cooperative Freight Research Program (NCFRP) research is sponsored by the Office of the Assistant Secretary for Research and Technology.  National Cooperative Highway Research Program (NCHRP) research is sponsored by the American Association of State Highway and Transportation Officials (AASHTO), in cooperation with the Federal Highway Administration (FHWA).  National Cooperative Rail Research Program (NCRRP) research is sponsored by the Federal Railroad Administration.  Transit Cooperative Research Program (TCRP) research is sponsored by the Federal Transit Administration (FTA) in cooperation with the Transit Development Corporation. COPYRIGHT INFORMATION Authors herein are responsible for the authenticity of their materials and for obtaining written permissions from publishers or persons who own the copyright to any previously published or copyrighted material used herein. Cooperative Research Programs (CRP) grants permission to reproduce material in this publication for classroom and not-for-profit purposes. Permission is given with the understanding that none of the material will be used to imply endorsement by TRB and any of its program sponsors of a particular product, method, or practice. It is expected that those reproducing the material in this document for educational and not-for-profit uses will give appropriate acknowledgment of the source of any reprinted or reproduced material. For other uses of the material, request permission from CRP. DISCLAIMER To facilitate more timely dissemination of research findings, this pre-publication document is taken directly from the submission of the research agency. The material has not been edited by TRB. The opinions and conclusions expressed or implied in this document are those of the researchers who performed the research. They are not necessarily those of the Transportation Research Board; the National Academies of Sciences, Engineering, and Medicine; or the program sponsors. The Transportation Research Board, the National Academies, and the sponsors of the National Cooperative Highway Research Program do not endorse products or manufacturers. Trade or manufacturers’ names appear herein solely because they are considered essential to the object of the report. This pre-publication document IS NOT an official publication of the Cooperative Research Programs; the Transportation Research Board; or the National Academies of Sciences, Engineering, and Medicine. Recommended citation: Elzly Technology Corporation. 2019. Guidelines for Detection and Remediation of Soluble Salt Contamination Prior to Coating Steel Highway Structures. Pre-publication draft of NCHRP Research Report 912. Transportation Research Board, Washington, D.C.

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TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 912: Guidelines for Detection and Remediation of Soluble Salt Contamination Prior to Coating Steel Highway Structures consolidates practical guidance on the detection and remediation of soluble salt contamination prior to coating steel highway structures.

Soluble salts are those that dissociate in solution into anionic and cationic components. The soluble salts referenced in this guideline are soluble in water at nominal room temperatures. Soluble salts may be transferred to a steel bridge structure as an airborne aerosol (generally from marine or industrial sources), wind-blown debris, and debris transferred from vehicles or rainwater. In many cold climates, the most common source of soluble salts on bridges is deicing materials.

The report presents a brief background on soluble salts as well as information in the form of responses to a series of practical questions that an inspector, contractor, or designer may pose. Appendices B through D of the report are also available in PowerPoint format.

Appendix B – Training: Introduction to Soluble Salts

Appendix C – Training: Detection of Soluble Salt Contamination

Appendix D – Training: Remediation of Soluble Salt Contamination

The contractor’s final report, titled Detection and Remediation of Soluble Salt Contamination Prior to Coating Steel Highway Structures, is a technical report presenting the results of the laboratory and field testing and their analyses that support the guidance contained in NCHRP Research Report 912. This contractor’s final report and associated appendices can be found on the NCHRP Project 10-97 web page.

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