CONCRETE DETERIORATION IN BRIDGES

A SURVEY IS MADE OF CONCRETE DETERIORATION IN BRIDGES. RECOMMENDATIONS ARE MADE FOR REMEDIAL ACTION TO SUCH BRIDGES BY REQUIRING: (1) MINIMUM COVER OF 2 1/2 INCHES BE PROVIDED FOR THE TOP REINFORCING STEEL, (2) DESIGNS WITHOUT CURBS TO FACILITATE FLUSHING OF SALT FROM THE DECK BY RAIN AND/OR WATER TRUCKS, (3) A CEMENT FACTOR OF NOT LESS THAN 6 1/2 SACKS BE USED, (4) AIR ENTRAINMENT BE CONTINUED WITH INCREASED EMPHASIS GIVEN TO CONTROL OF THE AMOUNT AND DISTRIBUTION, (5) LINSEED OIL TREATMENTS BE APPLIED TO ALL NEW CONSTRUCTION BEFORE THE BRIDGE IS OPENED TO TRAFFIC, (6) DE-ICING SALTS NOT BE APPLIED TO STRUCTURES OR ADJACENT PAVEMENT DURING THE FIRST YEAR OF LIFE, (7) SPECIFICATIONS GOVERNING CONCRETE CONSTRUCTION BE REVISED TO INCLUDE THE RECOMMENDATIONS OF ACI COMMITTEE 605 ON HOT WEATHER CONCRETEING, (8) INCREASED ATTENTION BE GIVEN TO OTHER WELL KNOWN REQUIREMENTS FOR OBTAINING QUALITY CONCRETE, PARTICULARLY ON SUCH MATTERS AS WATER ADDED TO THE MIX AND TO THE SURFACE BY ANY MEANS, AND (9) THE TRAINING LEVEL OF INSPECTORS BE INCREASED.

  • Authors:
    • Yantis, C W
  • Publication Date: 1967-2

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Filing Info

  • Accession Number: 00213423
  • Record Type: Publication
  • Report/Paper Numbers: pp 17-24
  • Files: TRIS
  • Created Date: Feb 9 1970 12:00AM