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Evaluation Law of Bond Behavior of Sea Sand Concrete-Embedded Anode

  • School of Civil Engineering, Harbin Institute of Technology
  • Ltd

Research output: Contribution to journalArticlepeer-review

Abstract

To investigate the protective effect of embedded anode cathodic protection on steel corrosion in sea sand concrete, the evolution of interfacial bond performance after anode consumption was studied through bond-slip tests and backscattered analysis. A bond-slip constitutive model was developed based on experimental data, and a long-term usable embedded zinc alloy anode protection scheme was proposed. The results show that after 360 days of seawater immersion, the bond strength between steel bars and sea sand concrete decreases by 30% due to steel corrosion. The bond strength between steel bars and concrete remains unchanged after applying the embedded zinc alloy anode cathodic protection system. The bond strength increases slightly after corrosion of the embedded zinc alloy anode, and the generated calcium zincate corrosion products show almost no expansion.

Translated title of the contribution海砂混凝土-内嵌式阳极黏结性能演化规律
Original languageEnglish
Pages (from-to)1062-1068
Number of pages7
JournalJianzhu Cailiao Xuebao/Journal of Building Materials
Volume28
Issue number11
DOIs
StatePublished - 2025
Externally publishedYes

Keywords

  • bond-slip
  • cathodic protection
  • constitutive model
  • embedded
  • sea sand concrete

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