Reliability-Based Prediction of Chloride Ingress and Reinforcement Corrosion of Aging Concrete Bridge Decks
Publication: Life-Cycle Performance of Deteriorating Structures: Assessment, Design and Management
Abstract
This paper presents a probabilistic approach for predicting the chloride contamination of concrete and reinforcing steel corrosion, which takes into account the uncertainty associated with the analytical models of chloride transport, corrosion initiation, as well as damage accumulation, material properties, structural dimensions, and applied environmental and mechanical loads. The proposed approach is illustrated on an aging reinforced concrete bridge deck that has been exposed to chlorides from deicing salts for forty years. An extensive non-destructive and destructive evaluation of the corrosion-damaged deck was undertaken. The field survey data showed a considerable level of variability in all parameters measured with coefficients of variation ranging from 34% for the concrete cover depth to 86% for the diffusion coefficient. The distributions of the chloride concentration at the level of the top reinforcement mat and the time for its corrosion initiation were generated using Monte Carlo Simulation. The simulated results were very close to the field data, which illustrates the prediction capabilities of probabilistic methods as opposed to deterministic methods.
Get full access to this article
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
Copyright
© 2004 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Aging (material)
- Bridge decks
- Bridge engineering
- Bridges
- Bridges (by material)
- Chemical compounds
- Chemicals
- Chemistry
- Chloride
- Concrete
- Concrete bridges
- Corrosion
- Decks
- Design (by type)
- Deterioration
- Engineering fundamentals
- Engineering materials (by type)
- Environmental engineering
- Materials characterization
- Materials engineering
- Reinforced concrete
- Salts
- Structural analysis
- Structural design
- Structural engineering
- Structural reliability
- Structural systems
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.