CONCRETE VARIABLES AND CORROSION TESTING

710 REINFORCED CONCRETE BLOCKS WERE PARTIALLY SUBMERGED IN A SATURATED SODIUM CHLORIDE SOLUTION. BASED ON THE TEST CRITERION THAT A SUFFICIENT QUANTITY OF CHLORIDE-ABSORBED CONCRETE CAUSES THE STEEL TO CHANGE FROM A PASSIVE TO AN ACTIVE OR CORRODING HALF-CELL POTENTIAL, THE TEST RESULTS SHOWED THAT INCREASING THE CEMENT FACTOR AND INCREASING THE LENGTH OF WATER CURING INCREASED THE TIME TO AN ACTIVE HALF- CELL POTENTIAL. STEAM CURING OF THE CONCRETE RESULTED IN A REDUCTION OF THE TIME TO AN ACTIVE HALF-CELL POTENTIAL AS WELL AS A REDUCTION IN ABSORPTION AS COMPARED TO JUST WATER CURING. THE TEST PROCEDURE USED VERIFIED CAPILLARY ACTION AS THE PRIMARY MECHANISM OF WATER ABSORPTION. THE CHLORIDE CONTENT OF THE CONCRETE WAS DETERMINED. OF THE THREE TESTED ADMIXTURES AND CORROSION INHIBITORS, ONLY POZZOLAN APPEARED TO RESULT IN A SIGNIFICANT BENEFIT EVEN THOUGH THIS CONCRETE HAD THE GREATEST ABSORPTION AND ALSO THE GREATEST DRYING SHRINKAGE. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 27-45
  • Monograph Title: Concrete properties and performances
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00214236
  • Record Type: Publication
  • ISBN: 0309020956
  • Files: TRIS, TRB
  • Created Date: Jul 24 1973 12:00AM