QUALITY CONTROL OF CONSTRUCTION BY STATISTICAL TOLERANCES

THIS REPORT REFLECTS THE EFFECTIVENESS OF THE CONSTRUCTION PRACTICES IN EFFECT IN 1965-66 TOWARDS MEETING THE REQUIREMENTS OF THE CONSTRUCTION SPECIFICATIONS AND GIVES AN EXCELLENT REVIEW OF THE DEGREE OF COMPLIANCE WITH THE SPECIFICATIONS BEING ACHIEVED BY THE CONTRACTORS ON: (1) GRADING PROJECT, (2) A BASE AND BITUMINOUS CONCRETE PAVEMENT PROJECT, AND (3) A BASE AND PORTLAND CEMENT CONCRETE PAVEMENT PROJECT. THE RESULTS REPORTED WERE FROM MATERIALS AND CONSTRUCTION WHICH HAD MET ALL REQUIREMENTS OF THE CONTRACT AS CURRENTLY USED BY THE STATE, NEVER-THE-LESS THE STATISTICAL METHODS OF SAMPLING, TESTING AND ANALYSIS DO SHOW A TENDENCY FOR A SMALL NUMBER OF RESULTS TO FALL OUTSIDE OF THE CONTRACT SPECIFICATIONS. THIS STUDY SHOULD SERVE TO GIVE THE DEPARTMENT REASSURANCE IN IGNORING THE STATISTICALLY SMALL PERCENTAGE OF UNSATISFACTORY RESULTS ENCOUNTERED ON NORMAL CONSTRUCTION OPERATIONS. THE MATTER OF ADJUSTING CONSTRUCTING SPECIFICATIONS ACCORDINGLY IS A POLICY DECISION. /BPR/

Media Info

  • Pagination: 254 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00214460
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: Dec 21 1994 12:00AM