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VEHICLE CORROSION DUE TO THE USE OF CHEMICALS IN WINTER MAINTENANCE AND THE EFFECT OF CORROSION INHIBITORS

IN AN INVESTIGATION OF VEHICLE CORROSION ATTRIBUTED TO THE USE OF DEICING CHEMICALS, THE EFFECTS OF VARIOUS CHEMICALS AND ALSO OF CORROSION INHIBITORS WAS STUDIED IN SEVERAL INDEPENDENT TESTS. FIVE DIFFERENT INTERMITTENT INVERSION TESTS (DRIP-DRY TESTS) SERIES RUNNING FOR A PERIOD OF 1-3 MONTHS, WERE PERFORMED AS OUTDOOR LABORATORY PROJECTS (3 IN WINTER; 1 IN SUMMER; AND 1 IN AUTUMN). TWO SIMILIAR SERIES OF TESTS WERE PERFORMED IN THE LABORATORY. FIELD TRIALS CONDUCTED ON THREE ROAD SECTIONS (UNSALTED SECTION; SALTED SECTION; AND SALT AND CORROSION INHIBITOR SECTION) INVOLVED THE TESTING OF VEHICLES WITH RACKS ATTACHED BY STEEL PLATES. RESULTS OF THE LABORATORY TESTS INDICATE THAT 70 TO 80 PERCENT OF THE CORROSION IS ATTRIBUTABLE TO SALT WHILE FIELD TESTS INDICATE THE FIGURE TO BE BETWEEN 56 AND 66 PERCENT. ALTHOUGH THE CORROSION IS MORE THAN TWICE AS HIGH WITH SALTING THAN WITHOUT, THE TOTAL CONTRIBUTION OF SALT IS EXPECTED TO BE LOWER WHEN ANNUAL ESTIMATES ARE CONSIDERED. TESTS DESIGNED TO FIND A NON-CORROSIVE DEICING CHEMICAL REVEALED NO VIABLE ALTERNATIVE TO SALT. OF THIRTEEN CORROSION INHIBITORS STUDIED, ONE INSOLUBLE PRODUCT WAS FOUND TO BE PROMISIING. THE INHIBITORS, HOWEVER, HAD NEGATIVE SIDE EFFECTS AND ARE VERY EXPENSIVE. THE MAIN CONCLUSIONS DRAWN FROM THE INVESTIGATIONS ARE LISTED.

  • Corporate Authors:

    Norwegian Road Research Lab

    ,    
  • Authors:
    • Thurmann-Moe, T
    • RUUD, O E
  • Publication Date: 1973-1

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 15-29
  • Serial:
    • Issue Number: 44

Subject/Index Terms

Filing Info

  • Accession Number: 00219074
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 9 1973 12:00AM