Long-term performance of different aluminum alloy designs as sacrificial anodes for rebars

Authors

  • O. de Rincón Centro de Estudios de Corrosión, Facultad de Ingeniería - Universidad del Zulia
  • M. Sánchez Centro de Estudios de Corrosión, Facultad de Ingeniería - Universidad del Zulia
  • M. de Romero Centro de Estudios de Corrosión, Facultad de Ingeniería - Universidad del Zulia
  • G. Paz Centro de Estudios de Corrosión, Facultad de Ingeniería - Universidad del Zulia
  • W. Campos Centro de Estudios de Corrosión, Facultad de Ingeniería - Universidad del Zulia

DOI:

https://doi.org/10.3989/revmetalm.2003.v39.iExtra.1124

Keywords:

Cathodic protection, Prestressed piles, Corrosion, Aluminum alloys anodes

Abstract


This paper presents the performance of various cathodic-protection designs using Aluminum alloys to protect prestressed piles. The results obtained with different system designs (bracelete type-Al/Zn/In alloy, thermosprayed aluminum (3-year evaluation) and conventional Al/Zn/In anocies in an epoxy-painted steel bracelet (12-year evaluation)), indicated that all of these systems may be used as sacrificial anodes for pile protection. However, the thermosprayed aluminum type can not be used in prestressed concrete piles because the very negative potentials ( < -1100 mV vs. Cu/CuSO4) they supply to the reinforcement could lead to hydrogen embrittlement.

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Published

2003-12-17

How to Cite

de Rincón, O., Sánchez, M., de Romero, M., Paz, G., & Campos, W. (2003). Long-term performance of different aluminum alloy designs as sacrificial anodes for rebars. Revista De Metalurgia, 39(Extra), 228–234. https://doi.org/10.3989/revmetalm.2003.v39.iExtra.1124

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Section

Articles