U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Hot mix asphalt voids acceptance review of QC/QA data 2000 through 2010.

File Language:
English


Details

  • Creators:
  • Corporate Creators:
    Colorado. Dept. of Transportation
  • Subject/TRT Terms:
  • Publication/ Report Number:
    CDOT-2011-15
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Colorado
  • Corporate Publisher:
    Colorado. DTD Applied Research and Innovation Branch
  • Abstract:
    This report analyzes the quality control/quality assurance (QC/QA) data for hot mix asphalt (HMA) using

    voids acceptance as the testing criteria awarded in the years 2000 through 2010. Analysis of the overall

    performance of the projects is accomplished by reviewing the Calculated Pay Factor Composite (CPFC) and

    Incentive/Disincentive Payments (I/DP). Analysis of each of the elements: asphalt content, voids in mineral

    aggregate (VMA), air voids, mat density, and joint density is presented in tables, figures, and reports. Various

    data groupings are used to evaluate the data including: year, region, and grading.

    The specification and the projects are performing reasonably well. The results for the data show that quality

    of the projects is remaining fairly consistent. No definite upward or downward trends can be seen in the data.

    Over the eleven-year time period more projects have received incentive payments than disincentive

    payments. The average CPFC over the eleven years evaluation is 1.00569. The quality levels in the

    individual elements are at relatively high levels. The VMA and mat density elements show the best results

    being above 93 percent within the specification limits. The asphalt content and air voids elements are at

    approximately 90 percent. The joint density pay factor is under 1.0 but is expected to rise as contractors gain

    experience in this area.

  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:a36e59a0ea3f3130f954c9955c59f161b2f1b561ac1b5a8194e0304b64c9babb
  • Download URL:
  • File Type:
    Filetype[PDF - 432.71 KB ]
PREVIOUS
File Language:
English
ON THIS PAGE
Details
ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP