STATISTICAL QUALITY CONTROL OF PORTLAND CEMENT CONCRETE PAVEMENTS

THREE CONSTRUCTION PROJECTS STUDIED, EACH BUILT BY A DIFFERENT CONTRACTOR. THE PROBLEM OF QUALITY CONTROL OF PORTLAND CEMENT CONCRETE PAVEMENTS WAS DIVIDED INTO SAMPLING, TESTING AND CONTROL CRITERIA FOR A SPECIFIC PAVEMENT DESIGN. SAMPLING OF AGGREGATES BEGAN AT THE STOCKPILES AND THE FOLLOW UP SYSTEM PRODUCED AN EXCESSIVE AMOUNT OF SAMPLING WHICH WAS EXPENSIVE AND DID NOT NECESSARILY LEAD TO IDENTIFICATION OF VARIATIONS IN THE PRODUCT. THE STUDY DISCUSSED A NEED TO EXERCISE MORE CONTROL AT THE SYSTEM-OPERATION LEVEL THAN IN THE MATERIAL. SOME TESTS WERE FOUND TO BE ANTIQUATED AND OTHERS CANNOT BE USED TO PINPOINT LACK OF COMPLIANCE WITH SPECIFICATIONS. RECOMMENDED RAPID SITE TESTS AS MORE MEANINGFUL THAN LABORATORY TESTS. GRADATION OF AGGREGATE PROBLEMS IS RECOGNIZED BUT DOES NOT SEEM TO BE PLAUSIBLE ANSWER TO THE PROBLEM. RECOMMENDED MORE RESEARCH BE DONE ON PROCESSES TO PRODUCE P.C. CONCRETE PAVEMENTS. REPORT PRESENTS SUMMARY OF ANALYSIS OF VARIANCE FOR THE SEVERAL CHARACTERISTICS FOR EACH OF THREE UNIDENTIFIED PROJECTS. /BPR/

  • Supplemental Notes:
    • Hpr, No 1483, STATE NO 64-02-2
  • Corporate Authors:

    University of Oklahoma, Norman

    660 Parrington Oval
    Norman, OK  United States  73019-0390

    Oklahoma Department of Highways

    200 NE 21st Street
    Oklahoma City, OK  United States  73105
  • Authors:
    • Laguros, J
  • Publication Date: 1967-7

Subject/Index Terms

Filing Info

  • Accession Number: 00214458
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: Oct 4 1994 12:00AM