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

Chavez, Eric

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

2006-07-01
By Chavez, Eric

File Language:

English

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:sha256:3c35f52caf126da70ae3842d8ac865405b9595a40df8d10ec7434e3738130602
Download URL:

https://rosap.ntl.bts.gov/view/dot/23471/dot_23471_DS1.pdf
File Type:

[PDF - 1.00 MB ]

File Language:

English

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