EXPERIMENTS IN GALVANIC CORROSION OF STEEL IN CONTACT WITH CFRP COMPOSITES IN MORTAR AND CONCRETE

Galvanic corrosion is a possible form of deterioration when CFRP and steel are in direct contact in concrete, as in stirrups tied to prestressing CFRP tendons. Laboratory experiments were performed to determine the magnitude of galvanic currents that may take place as a consequence. Preliminary results show little galvanic corrosion of steel when coupled with CRFP composite in chloride contaminated wet concrete (w/c=0.41), and in mortar free of chlorides. However, significant galvanic action was observed in chloride contaminated mortar with a higher water to cement ratio (w/c=0.5). The study suggests that steel corrosion caused by de-icing salts or marine exposure may be aggravated by the direct contract between steel and CFRP. (A) For the covering abstract see ITRD E104933.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0921303645
• Corporate Authors:

  CANADIAN SOCIETY FOR CIVIL ENGINEERING

  2155 GUY, BUREAU 840
  MONTREAL, QUEBEC  Canada  H3H 2R9
• Authors:
  • Torres-Acosta, A A
  • Sagues, Alberto A
  • Sen, R
• Conference:
  • PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON ADVANCED COMPOSITE MATERIALS IN BRIDGES AND STRUCTURES, ACMBS-II, MONTREAL 1996
• Publication Date: 1996

Language

• English

Media Info

• Features: References;
• Pagination: p. 141-8

Subject/Index Terms

• TRT Terms: Composite materials; Concrete; Conferences; Corrosion; Deicing chemicals; Deterioration; Electricity; Halides; Moisture content; Mortar; Seas; Steel; Tests
• ITRD Terms: 9005: Composite; 4755: Concrete; 8525: Conference; 5252: Corrosion; 2598: Deicing; 5255: Deterioration; 6954: Electricity; 7314: Halide; 5920: Moisture content; 4769: Mortar; 4368: Sea; 4542: Steel; 6255: Test
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 00793608
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-921303-64-5
• Files: ITRD
• Created Date: Jun 15 2000 12:00AM