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Agency Publishes Soluble Salt Contamination Guidance

Friday, April 26, 2019

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The National Cooperative Highway Research Program, which belongs to the Transportation Research Board, recently published a research report that consolidates guidance regarding the remediation of soluble salt contamination that should occur prior to coating steel highway structures.

"Research Report 912: Guidelines for Detection and Remediation of Soluble Salt Contamination Prior to Coating Steel Highway Structures" features a brief summary of soluble salts, as well as a series of answers to questions that may come from inspectors, contractors or designers.

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The National Cooperative Highway Research Program, which belongs to the Transportation Research Board, recently published a research report that consolidates guidance regarding the remediation of soluble salt contamination that should occur prior to coating steel highway structures.

The soluble salts discussed in the guidelines are water-soluble at “nominal” room temperatures. The guidelines also include how to identify soluble salt contamination.

The guidance is available for purchase from the TRB. The TRB’s new guidance is supported with data from the technical report “Detection and Remediation of Soluble Salt Contamination Prior to Coating Steel Highway Structures” that presents laboratory results and field testing, as well as analyses.

In March 2018, SSPC: The Society for Protective Coatings released SSPC-Guide 24, "Soluble Salt Testing Frequency and Locations on New Steel Surfaces," which offers guidance on where and how frequently to test for salts on steel that is either previously uncoated or was shop-coated and requires further coating in the field.

   

Tagged categories: Certifications and standards; NA; North America; Quality Control; Quality control; Soluble salts; Surface preparation

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