HOW CHLORIDES AFFECT CONCRETE USED WITH REINFORCING STEEL

THE CORROSION BEHAVIOR OF STEEL IN CONCRETE HAS BEEN ATTRIBUTED TO CONCRETE ABSORPTION AND TO SALT IN THE CONCRETE. THIS STUDY REPORTS THE RESULTS OF MEASURING RESISTIVITY AND ABSORPTION OF CONCRETE WHEN THE CHLORIDE ION AND CEMENT CONTENT OF CONCRETE ARE VARIED. THE RESULTS INDICATE THAT RESISTIVITY OF CONCRETE IS RELATED TO THE AMBIENT MOISTURE LEVEL IN THE CONCRETE AS WELL AS TO THE AMOUNT OF WATER AND CEMENT USED IN CONCRETE MANUFACTURE. SIGNIFICANT ADDITIONS OF CHLORIDE ION TO THE MIX ONLY AFFECTED RESISTIVITY BY VIRTUE OF INCREASING CONCRETE ABSORPTION. HOWEVER, WHEN CHLORIDE CONTAINING CONCRETE WAS OVEN DRIED AND RESOAKED, ITS RESISTIVITY DECREASED WITH INCREASING SALT CONTENT. THE INSTRUMENTS FOR MEASURING RESISTIVITY IN THE FIELD AND THE LABORATORY ARE SHOWN AND DESCRIBED. AN EMPIRICAL FORMULA IS GIVEN WHICH RELATES ABSORPTION TO CONCRETE MIX VARIABLES. /AUTHOR/

  • Supplemental Notes:
    • Vol 7, No 3, PP 29-34, 8 FIG, 1 TAB, 15 REF
  • Authors:
    • Stratfull, R F
  • Publication Date: 1968-3

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Filing Info

  • Accession Number: 00212585
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 6 1970 12:00AM