USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation
TFHRC Logo
Office of Research, Development and Technology at the Turner-Fairbanks Highway Research Center

Laboratory Evaluation of Five Metallic Strand Materials for Corrosion Control of Post-Tensioned Tendons: Summary of Preliminary Findings

Publication Information

Publication Type:
Summary Report
Publication Number:
FHWA-HRT-24-158
Abstract:

This summary report explains corrosion control methods, including using flexible fillers such as petroleum-based microcrystalline wax to replace cementitious grout—an impregnation method using a silicon polymer-based corrosion inhibitor that impregnates the grout to form a barrier to moisture and oxygen upon a pressure-driven injection process—and electrically isolating tendons from surroundings and monitoring their in-service condition. These methods and ongoing efforts are encouraging developments for constructing more durable PT bridges. More time is needed to uncover pros and cons due to the limited experience with the new methods, but the bridge community has been moving forward in a positive direction.

 


 

Recommended citation: Federal Highway Administration, Laboratory Evaluation of Five Metallic Strand Materials for Corrosion Control of Post-Tensioned Tendons: Summary of Preliminary Findings (Washington, DC: 2024) https://doi.org/10.21949/1521601

Publishing Date:
September 2024
Digital Object Identifier:
https://doi.org/10.21949/1521601
Author(s):
Lee, Seung-Kyoung (ORCID: 0000-0001-7367-5197)
Publishing Office:
Bridge Engineering Team
FHWA Program(s):
Infrastructure
AMRP Program(s):
Structures
FHWA Activities:
Long-Term Bridge Performance
Subject Area:
Research
Bridges and other structures