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COORDINATION OF CONCRETE PAVING OPERATIONS BY A TRIAL AREA SPECIFICATION

THE START OF LAYING CONCRETE PAVEMENT ON A NEW CONTRACT IS REGARDED AS A TRIAL DURING WHICH THE CONTRACTOR'S ORGANIZATION, CREW AND EQUIPMENT MUST BE BROUGHT INTO WORKING COORDINATION WITH THE DESIGN CONCRETE MIX SO AS TO ACHIEVE THE SPECIFIED CONCRETE AND RIDING QUALITY FOR THE PAVEMENT. A SYSTEMATIC METHOD IS DESCRIBED WHICH SHOULD ENSURE THAT THE PAVING OPERATION AS A WHOLE REACHES ITS FINAL AND MOST SATISFACTORY FORM AS QUICKLY AS POSSIBLE. A SPECIFICATION FOR THIS, AS USED WITH GREAT SUCCESS IN ONTARIO, CALLS FOR A TRIAL PAVEMENT AREA 1,000 FT LONG TO BE LAID AHEAD OF THE MAIN PAVING. THIS TRIAL AREA AFFORDS AN OPPORTUNITY FOR ANY NECESSARY CHANGES IN THE ORGANIZATION OF THE JOB, FOR ANY ADJUSTMENTS TO THE EQUIPMENT OR ALTERATIONS IN THE DESIGN MIX PROPORTIONS TO SUIT WORKING CONDITIONS, AND FOR THE TRAINING OF INEXPERIENCED MEN. TO CHECK THE QUALITY OF THE PAVEMENT AS QUICKLY AS POSSIBLE, ACCELERATED TESTS ARE UNDER DEVELOPMENT TO ESTABLISH THE STRENGTH AND COMPACTION OF THE CONCRETE WITHIN A FEW HOURS. IN ADDITION, THE RIDING QUALITY OF THE PAVEMENT IS MEASURED. IF THE RESULT OF THESE TESTS ARE SATISFACTORY AND THE TRIAL AREA WAS SUCCESSFUL, THE CONTRACTOR IS ALLOWED TO PROCEED AND THE TRIAL AREA BECOMES PART OF THE PAVEMENT. IF NOT, THE CONTRACTOR IS HELD UNTIL NECESSARY CORRECTIONS ARE MADE; ANY SLABS IN THE TRIAL AREA NOT MEETING THE SPECIFICATION ARE REMOVED AND REPLACED AT THE CONTRATOR'S EXPENSE. THE BACKGROUND, CONTRACTUAL AND PRACTICAL ADVANTAGES, TOGETHER WITH THE RESULTS ACHIEVED BY SUCH A TRIAL AREA SPECIFICATION, ARE DISCUSSED. /AUTHOR/

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  • Supplemental Notes:
    • Vol 40, pp 441-461, 2 FIG, 15 REF, APP. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
  • Authors:
    • Smith, P
  • Publication Date: 1961

Media Info

  • Media Type: Digital/other
  • Monograph Title: Proceedings of the Fortieth Annual Meeting of the Highway Research Board, Washington, D.C., January 9-13, 1961.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00215417
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jun 5 1972 12:00AM