Comparative Study of Flexural Behavior of Corroded Beams with Different Types of Steel Bars

Lei Wang, Yafei Ma, Wei Ding, Jianren Zhang, Yongming Liu

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

An experimental study is proposed to compare the corrosion-induced flexural behavior deterioration of beams with various bar types and bar diameters. The proposed study aims to distinguish the effects of the corrosion of different rebars on the flexural behavior of reinforced concrete (RC) beams. Twenty-two RC beams were designed and four variables were considered: the type and the diameter of reinforcement, corrosion loss, and concrete cover. Corrosion was induced in the laboratory using an accelerated corrosion technique. The corrosion-induced strength loss for two types of steel bars is discussed. Extensive statistical analysis is performed to compare the flexural performance of beams with different rebars. The experimental results show that (1) corrosion has a more significant effect on the flexural behavior deterioration in beams with smooth rebars than in beams with deformed rebars; (2) the corrosion-induced performance deterioration has a monotonic decreasing relationship with reinforcement size; and (3) large-diameter steel bars are more appropriate for structural safety.

Original languageEnglish (US)
Article number04014163
JournalJournal of Performance of Constructed Facilities
Volume29
Issue number6
DOIs
StatePublished - Dec 1 2015

Keywords

  • Corrosion
  • Flexural behavior
  • Reinforced concrete beam
  • Steel bar type

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Safety, Risk, Reliability and Quality

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