Hot mix asphalt voids acceptance review of QC/QA data 2000 through 2004.

Details

• Creators:
  Chavez, Eric
• Corporate Creators:
  Colorado. Dept. of Transportation
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  Asphalt Pavements Hot Mix Asphalt Pavements Pavements, Asphalt--Colorado Pavements--Colorado--Testing Paving Materials Quality Assurance Quality Control Testing
• Publication/ Report Number:
  CDOT-DTD-R-2006-12
• Resource Type:
  Tech Report
• Geographical Coverage:
  Colorado
• Corporate Publisher:
  Colorado. Dept. of Transportation. Research Branch
• Abstract:
  This report analyzes the Quality Control/Quality Assurance (QC/QA) data for hot mix asphalt using voids acceptance as
  
  the testing criteria for the years 2000 through 2004. Analysis of the overall quality of the HMA is accomplished by
  
  reviewing the Calculated Pay Factor Composite (CPFC) and Incentive/Disincentive Payments (I/DP). Analysis of each of
  
  the test elements: asphalt content, voids in mineral aggregate, 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, & grading.
  
  The specification and the projects are performing reasonably well. Over the five-year time period more projects have
  
  received incentive payments than disincentive payments. The average pay over the five years is 1.00848. The quality
  
  levels in the individual elements are at reasonable levels. Over the five-year time period the VMA element has the best
  
  quality levels with an average of 95.00. Mat density has the next best results with an average of 92.89. Air voids and
  
  percent asphalt are third and fourth with average quality levels of 90.41 and 89.86. Joint density testing has been a
  
  requirement beginning in 2003. The pay factor for this element is just under 1.0 but is expected to increase as
  
  contractors gain experience in this area.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:5bb622fe080e8599eba0cf8dfcfa2e9ddb6a6762ac450075ab26fad8480dc5e2802a2cb83b7486f8cbcaafbc8f5b91daf0b094d2fe77da4c6e0ae9d36b6c466b
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23471/dot_23471_DS1.pdf
• File Type:
  [PDF - 1.00 MB ]