Galvanic corrosion of carbon and steel in aggressive environments

Mohammadreza Tavakkolizadeh, Hamid - Saadatmanesh

Research output: Contribution to journalArticle

114 Citations (Scopus)

Abstract

The demand for the use of carbon-fiber-reinforced plastics (CFRP) in rehabilitation of deteriorating infrastructure is increasing worldwide. The design characteristics of reinforced concrete or steel members can be enhanced significantly by epoxy bonding CFRP laminates to the critically stressed tension areas. There is, however, a concern regarding possible galvanic corrosion when carbon and steel are bonded together. This paper presents the result of a study on the galvanic corrosion between CFRP laminates and steel. A total of 38 specimens made of steel and carbon fibers were prepared and tested. Two simulated aggressive environments and three different amounts of epoxy coating were used in addition to samples with no coating at all. Furthermore, the effect of the sizing agent on the galvanic corrosion rate was investigated, and three different solvents were used to remove the sizing agents from the surface of the carbon fibers. Potentiodynamic polarization and galvanic corrosion tests were conducted. The results of the experiments showed the existence of galvanic corrosion; however, the rate of such corrosion could be decreased significantly by epoxy coating.

Original languageEnglish (US)
Pages (from-to)200-210
Number of pages11
JournalJournal of Composites for Construction
Volume5
Issue number3
DOIs
StatePublished - Aug 2001

Fingerprint

Steel
Carbon
Corrosion
Carbon fiber reinforced plastics
Plastic laminates
Coatings
Carbon fibers
Steel fibers
Potentiodynamic polarization
Corrosion rate
Patient rehabilitation
Reinforced concrete
carbon fiber reinforced plastic
Experiments
carbon fiber

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ceramics and Composites
  • Mechanics of Materials
  • Computational Mechanics

Cite this

Galvanic corrosion of carbon and steel in aggressive environments. / Tavakkolizadeh, Mohammadreza; Saadatmanesh, Hamid -.

In: Journal of Composites for Construction, Vol. 5, No. 3, 08.2001, p. 200-210.

Research output: Contribution to journalArticle

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