EVALUATION OF THE CORROSION RESISTANCE OF ALTERNATE REVETMENT WIRE FABRIC MATERIALS IN THE LOWER MISSISSIPPI RIVER

This report presents the results of a study of the corrosion resistance and strength of alternate fabric materials for use in articulated concrete revetment mattresses to be placed on the lower banks of the Mississippi River. Three groups of Materials--stainless steels, bimetallies, and organically coated low-carbon steels--were evaluated based on short-term electrochemical laboratory tests, laboratory sensitization evaluations, and exposures of up to approximately 4 years in freshwater and 15 months in brackish water. All the stainless steels tested (AISI 201, AISI 301, Armco 18-2, AISI 430, and AM 363) have sufficient strength and corrosion resistance in freshwater to qualify them as substitute wire fabric materials. However, only AISI 301 and AISI 201 evidence sufficient corrosion resistance in brackish water for the period tested. Additional test data are needed to evaluate their overall corrosion resistance. In addition, all the stainless steels tested were found to be unsuitable for welded use in brackish water environments. The bimetallic materials evaluated (Cooperweld and galvanized steel) performed satisfactorily with respect to corrosion resistance, although silt covering enhanced the resistance. The galvanized wire, however, has inadequate adherence of the zinc to the steel when deformed. The copperclad wire enhibited extremely rapid corrosion whenever the copper cladding was ruptured. More data are needed to evaluate the resistance of the the bimetallic materials in salt water. Of the organic coatings evaluated--VMCH (a vinyl resin), polyvinyl chloride, and polyethylene--only VMCH failed to provide adequate corrosion resistance for carbon steel wire in the Mississippi River. However, handling difficulties preclude use of these materials unless handling equipment is extensively modified. /Authors/

  • Corporate Authors:

    Army Construction Engineering Research Laboratory

    P.O. Box 4005
    Champaign, IL  USA  61820
  • Authors:
    • Cox, E P
    • Chen, C G
  • Publication Date: 1977-7

Media Info

  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 61 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00190166
  • Record Type: Publication
  • Source Agency: Army Construction Engineering Research Laboratory
  • Report/Paper Numbers: CERL-TR-M-221 Final Rpt.
  • Contract Numbers: Vicksburg 3152, N Orleans LMNED 76-2, Memphis LMMED-73-3
  • Files: TRIS
  • Created Date: May 11 1979 12:00AM