Investigation of the corrosion-induced damage mechanism of steel fibers in ultra-high-performance steel fiber-reinforced concrete using X-ray computed tomography

Jianjun Han, Zhuang Miao, Julian Wang, Xianlei Zhang, Yajun Lv

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

To investigate the corrosion damage mechanism of ultra-high-performance steel fiber-reinforced concrete (UHPSFRC), the electrically accelerated corrosion process of specimens with different steel fiber contents was evaluated using micron-level X-ray computed tomography. The results showed that the grid structure formed by the interconnecting steel fibers was a key factor in inducing corrosion damage in the UHPSFRC. The 1% steel fiber content specimens were strongly corrosion-resistant. Steel fiber corrosion triggered the concrete cover of the UHPSFRC to crack or spall from the outside to the inside, and areas with a higher initial density of steel fibers showed a higher degree of damage.

Original languageEnglish (US)
Article number130429
JournalConstruction and Building Materials
Volume368
DOIs
StatePublished - Mar 3 2023

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science

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