01146810

Component

http://www.trb.org/Publications/Blurbs/162566.aspx

http://onlinepubs.trb.org...bs/trnews/trnews264rpo.pdf

Evaluating the corrosion condition of a reinforced concrete structure is essential in developing a strategy for repair and rehabilitation after corrosion-induced damage. The National Cooperative Highway Research Program (NCHRP) therefore initiated a project to develop a protocol for evaluating the condition of bridge superstructure elements, for estimating the remaining service life, and for identifying the options for mitigating the corrosion. The project findings produced a condition survey protocol, a model for remaining service life, and a susceptibility index to designate the likelihood of corrosion. This article briefly summarizes the problem, the solution, the applications of the model, and the benefits realized. NCHRP Report 558, "Manual on Service Life of Corrosion-Damaged Reinforced Concrete Bridge Superstructure Elements," presents the findings of this research project which was conducted by CONCORR, Incorporated.

Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

English

pp 27-28

2009-9

TR News

Print

Photos (1)

Benefits; Bridge superstructures; Condition surveys; Corrosion; Mathematical models; Rehabilitation; Reinforced concrete bridges; Service life

Testing protocol

Bridges and other structures; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I60: Maintenance

TRIS, TRB, ATRI

Dec 21 2009 8:31AM

• Changes in Travel Characteristics by Gender: U.S. Commuting Trends from a National Sample, 1985-2005
• Changing Demographics Change the Transportation System
• Communicating Transportation, Energy, and Climate Change Concepts to the Public: TRB Contest Identifies Exemplary Efforts
• Focusing on Demographic Changes and the Transportation System: TRB Activities Under Way
• Key Issues in Transportation and Aging: Ensuring Safe Mobility for Older Adults
• Preparing the Transportation System for Demographic Changes: Conference Explores Research Needs
• The Safety and Mobility Patterns of Older Women in 2030: Defining and Meeting the Challenges
• Travel Demand in the Context of Growing Diversity: Considerations for Policy, Planning, and Forecasting