An integrated framework for modelling time-dependent corrosion propagation in offshore concrete structures

Reinforcement corrosion is an enduring durability issue essential to the designs and maintenances of diverse offshore concrete structures. The corrosion propagation can be triggered and governed by a variety of environmental conditions, which is a complex process comprising the stages from time-dependent concrete decay during the initiation phase to the active corrosion phase. Misinterpretations and/or oversimplifications, due to difficulties in numerical modelling, on either phase would greatly impair the robustness of the estimation on corrosion rate. In this study, a novel numerical framework, integrating the chemo-physical–mechanical and electrochemical modelling techniques, is freshly developed to effectively address the conundrum in predicting time-dependent corrosion propagation. The developed framework is actively validated against a variety of experimental problems, where both long-term microcell and macrocell corrosions, as well as corrosions triggered under various sources are considered. The numerical studies thoroughly demonstrate the potential versatility of the proposed method in modern offshore civil engineering.

• Record URL:
  • https://doi.org/10.1016/j.engstruct.2020.111482
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0141029620340839
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01410296
• Supplemental Notes:
  • © 2020 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Yu, Yuguo
  • Gao, Wei
  • Castel, Arnaud
  • Chen, Xiaojun
  • Liu, Airong
• Publication Date: 2021-2-1

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Serial:
  • Engineering Structures
  • Volume: 228
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0141-0296
  • Serial URL: http://www.sciencedirect.com/science/journal/01410296

Subject/Index Terms

• TRT Terms: Corrosion; Numerical analysis; Offshore structures; Reinforced concrete; Time dependence
• Subject Areas: Bridges and other structures; Maintenance and Preservation; Marine Transportation;

Filing Info

• Accession Number: 01761071
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 22 2020 9:36AM