Abstract
| Original language | English |
|---|---|
| Title of host publication | Assessment, Upgrading and Refurbishment of Infrastructures |
| Place of Publication | Zurich |
| Publisher | International Association for Bridge and Structural Engineering |
| Number of pages | 8 |
| ISBN (Print) | 9783857481239 |
| Publication status | Published - 2013 |
| Event | IABSE Conference - Rotterdam, Netherlands Duration: 6 May 2013 → 8 May 2013 |
Publication series
| Name | IABSE report |
|---|---|
| Volume | 99 |
Conference
| Conference | IABSE Conference |
|---|---|
| Country | Netherlands |
| City | Rotterdam |
| Period | 6/05/13 → 8/05/13 |
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Keywords
- Chloride induced corrosion
- reinforced concrete
- reinforcement bars and spatial variability
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Spatial Characterisation of Chloride-induced Corrosion of Bars in Concrete. / Llano, L.; Rafiq, M. Imran; Chryssanthopoulos, Marios.
Assessment, Upgrading and Refurbishment of Infrastructures. Zurich : International Association for Bridge and Structural Engineering, 2013. (IABSE report; Vol. 99).Research output: Chapter in Book/Conference proceeding with ISSN or ISBN › Conference contribution with ISSN or ISBN › Research › peer-review
TY - GEN
T1 - Spatial Characterisation of Chloride-induced Corrosion of Bars in Concrete
AU - Llano, L.
AU - Rafiq, M. Imran
AU - Chryssanthopoulos, Marios
PY - 2013
Y1 - 2013
N2 - Chloride induced corrosion, caused primarily by de-icing salts or salt spray in marine environments, is one of the most common deterioration processes in reinforced concrete. It often causes a localized loss of section, known as pitting, which can lead to a significant reduction of the structure’s service life. In order to predict the impact of this phenomenon on the mechanical properties of the reinforcing bars in concrete a thorough analysis of its characteristics is needed. At present, most of the models found in literature describe uniform corrosion and those that do address localized corrosion focus on a simplified definition of the reduced cross-sectional area of corroded rebars without due attention to physical characteristics and spatial variability. This may be attributed to the limitations of current non-automated and largely heuristic methods used in evaluating the corrosion characteristics on the surface of reinforcement. Automation of the corrosion measurement method would lead to the development of comprehensive corrosion models considering both systematic and random features of the deterioration process. In this paper, experimental results from corroded bars are processed using 3D scanning techniques and characterised using spatial analysis tools, thus preparing the ground for probabilistic corrosion modelling based on random field concepts.
AB - Chloride induced corrosion, caused primarily by de-icing salts or salt spray in marine environments, is one of the most common deterioration processes in reinforced concrete. It often causes a localized loss of section, known as pitting, which can lead to a significant reduction of the structure’s service life. In order to predict the impact of this phenomenon on the mechanical properties of the reinforcing bars in concrete a thorough analysis of its characteristics is needed. At present, most of the models found in literature describe uniform corrosion and those that do address localized corrosion focus on a simplified definition of the reduced cross-sectional area of corroded rebars without due attention to physical characteristics and spatial variability. This may be attributed to the limitations of current non-automated and largely heuristic methods used in evaluating the corrosion characteristics on the surface of reinforcement. Automation of the corrosion measurement method would lead to the development of comprehensive corrosion models considering both systematic and random features of the deterioration process. In this paper, experimental results from corroded bars are processed using 3D scanning techniques and characterised using spatial analysis tools, thus preparing the ground for probabilistic corrosion modelling based on random field concepts.
KW - Chloride induced corrosion
KW - reinforced concrete
KW - reinforcement bars and spatial variability
M3 - Conference contribution with ISSN or ISBN
SN - 9783857481239
T3 - IABSE report
BT - Assessment, Upgrading and Refurbishment of Infrastructures
PB - International Association for Bridge and Structural Engineering
CY - Zurich
ER -