TIME-TO-CORROSION OF REINFORCING STEEL IN CONCRETE SLABS. VOLUME 2: ELECTRICAL POTENTIAL DATA

THE PURPOSE OF THIS INVESTIGATION IS TO PROVIDE ADMINISTRATORS AND DESIGNERS WITH FACTURAL DATA ON WHICH TO BASE DECISIONS ON THE TYPE OF PROTECTION TO PROVIDE TO BRIDGE DECKS CONSTRUCTED IN CORROSIVE ENVIRONMENTS. SPECIFICALLY, THE OBJECTIVE IS TO DETERMINE THE RELATIVE TIME-TO-CORROSION OF REINFORCING STEEL EMBEDDED IN CONCRETE SLABS, FABRICATED FROM VARIOUS MIX DESIGNS AND CONSTRUCTION PROCEDURES, WHEN THE SLABS ARE SUBJECT TO PERIODIC WETTING WITH A 3 PERCENT NAC1 SOLUTION. ONE HUNDRED TWENTY FOUR, 4 FT. BY 5 FT. BY 6-IN. REINFORCED CONCRETE SLABS WERE FABRICATED, CURED, AND PLACED IN THE OUTDOOR EXPOSURE YARD ON ELEVATED STANDS. THREE EVALUATION TECHNIQUES WERE USED TO ASCERTAIN THE PERFORMANCE OF EACH VARIABLE: 1) CHLORIDE CONTENT AT THE LEVEL OF THE REINFORCING; 2) VISUAL EXAMINATION OF THE CONCRETE; 3) ELECRICAL HALF-CELL POTENTIAL OF THE REINFORCING STEEL. THIS VOLUME CONTAINS THE DATA OBTAINED USING THE THIRD EVALUATION TECHNIQUE. THE DATA ARE PRESENTED IN THE FORM OF PLOTS OF ELECTRICAL HALF-CELL POTENTIAL TO THE COPPER-COPPER SULFATE ELECTRODE VERSUS TIME (WITH INCREASED DEICER APPLICATIONS) FOR EACH OF THE 124 SLABS. /FHWA/

  • Corporate Authors:

    Federal Highway Administration

    Office of Research and Development, 1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • CLEAR, K C
    • HAY, R E
  • Publication Date: 1973-4

Media Info

  • Pagination: 139 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00212149
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-RD-73- 33 Intrm Rpt., FCP 24B1-012
  • Files: TRIS, USDOT
  • Created Date: Jul 31 1976 12:00AM