Electrochemical responses and chloride ingress in reinforced Belite-Ye'elimite-Ferrite (BYF) cement matrix exposed to exogenous salt sources

Guilherme Yuuki Koga, Paul Comperat, Blandine Albert, Virginie Roche, Ricardo Pereira Nogueira

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Reinforced Belite-Ye'elimite-Ferrite (BYF) mortars cured for different times and exposed for 90 and 182 days to a chloride-rich solution (full immersion and dry/wet cycles) were compared to Portland equivalents in terms of porosity, corrosion, chloride ingress and sorptivity. The effect of fly ash addition was also considered. BYF- and Portland-embedded rebars remained passivated through 182-day testing. The apparent chloride diffusion coefficients were about 10−12 m² s-1, except for 28-day-cured BYF mortars containing fly ash, which exhibited higher values. The results contribute to a better assessment of durability issues concerning BYF matrices, indicating they can be a reliable alternative to Portland.

Original languageBritish English
Article number108469
JournalCorrosion Science
Volume166
DOIs
StatePublished - 15 Apr 2020

Keywords

  • Chloride-profile
  • Corrosion
  • Durability
  • Steel reinforced concrete
  • Sulfoaluminate cement

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