DETERMINING THE ASPHALT CEMENT CONTENT OF BITUMINOUS MIXTURES USING THE NCAT ASPHALT CONTENT OVEN
The purpose of this study was to develop a procedure for accurately and efficiently measuring the asphalt cement (AC) content of bituminous mixtures using the National Center for Asphalt Technology (NCAT) Asphalt Content Oven. The results were documented and a test procedure was written which incorporated the study findings. The results of this study demonstrate that the NCAT Asphalt Content Oven can be used to measure AC contents accurately. In addition to evaluating the NCAT asphalt content measurement method, an external scale method using the NCAT Asphalt Content Oven was developed. Using the external scale method the standard deviation for the differences between the actual and measured AC contents was 0.073 when applying a two-specimen mixture correction factor. The study set included 41 bituminous specimens. A mixture correction factor is required when measuring the AC contents of field produced samples.
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Corporate Authors:
Colorado Department of Transportation
4201 E Arkansas Avenue
Denver, CO United States 80222Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Reyes, R
- MacKean, C
- Aschenbrener, T
- Publication Date: 1996-7
Language
- English
Media Info
- Features: Appendices; Figures; Photos; References; Tables;
- Pagination: 110 p.
Subject/Index Terms
- TRT Terms: Accuracy; Asphalt content; Bituminous mixtures; Measuring methods; Ovens
- Old TRIS Terms: Ncat asphalt content oven
- Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 00727257
- Record Type: Publication
- Report/Paper Numbers: CDOT-DTD-R-96-8, Final Report
- Files: TRIS, USDOT, STATEDOT
- Created Date: Oct 10 1996 12:00AM