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Effects of two corrosion acceleration methods on spatial steel corrosion and structural performance of RC beams

  • S. Lim
  • , J. Xin
  • , M. Akiyama
  • , Z. Xu
  • , A. Li
  • , D. M. Frangopol
  • , S. Miyazato
  • Waseda University
  • Lehigh University
  • Kanazawa Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Structural performance of RC members is significantly affected by localized corrosion on steel reinforcement. It is essential to study the effect of spatial steel corrosion on their structural performance assessment. Artificial chloride environment (ACE) method is regarded as an appropriate accelerated-corrosion technique for inducing steel corrosion similar to that under natural conditions. However, it is time-consuming. Researchers prefer to use the galvanostatic (GS) method by adjusting the current density. Nevertheless, applying different current densities causes a substantial difference in steel corrosion and structural behavior of RC members. This paper aims to investigate the spatial growth in steel corrosion and structural behavior of RC beams corroded by using the ACE method. Experimental results are compared to those associated with the GS method. Finite element analysis considering spatial steel corrosion is employed to simulate the structural performance of RC beams. Recommendations on suitable current densities to be used in a laboratory test are provided.

Original languageEnglish
Title of host publicationBridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability - Proceedings of the 11th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2022
EditorsJoan-Ramon Casas, Dan M. Frangopol, Jose Turmo
PublisherCRC Press/Balkema
Pages253-259
Number of pages7
ISBN (Print)9781032345314
DOIs
StatePublished - 2023
Externally publishedYes
Event11th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2022 - Barcelona, Spain
Duration: 11 Jul 202215 Jul 2022

Publication series

NameBridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability - Proceedings of the 11th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2022

Conference

Conference11th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2022
Country/TerritorySpain
CityBarcelona
Period11/07/2215/07/22

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