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Publication Number:  FHWA-HRT-21-052    Date:  May 2021
Publication Number: FHWA-HRT-21-052
Date: May 2021


Corrosivity of Water-Soluble Sulfate Ions in Simulated Pore Water Solutions and Different Types of Grout Samples

PDF Version (3.33 MB)


This final report presents research findings of an accelerated corrosion test program to determine the corrosivity of water-soluble sulfate ions in the simulated grout pore water and how these ions are present in various types of grout samples. The research product can enhance the bridge owners' understanding of sulfate-induced corrosion in the grouted post-tensioned tendons and help their management of prestressed concrete bridges containing this type of tendons. This report is expected to be of interest to bridge program personnel from Federal, State, and local transportation departments as well as to parties engaged in bridge-related research.

Cheryl Allen Richter, P.E., Ph.D.
Director, Office of Infrastructure
Research and Development


This document is disseminated under the sponsorship of the U.S. Department of Transportation (USDOT) in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in this document.

The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturers' names appear in this report only because they are considered essential to the objective of the document.

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