DETERMINATION OF COMPACTIVE EFFORT TO DUPLICATE PAVEMENT VOIDS FOR CORPS OF ENGINEERS GYRATORY TESTING MACHINE
The Corps of Engineers gyratory testing machine (GTM) has been used by various agencies to design and test asphalt mixes. Material properties such as shear strength and strain are measured during the compaction process, but a compaction process duplicating void levels in the pavement after traffic has not been clearly defined. The intent of this project was to determine the laboratory compactive effort for the GTM that duplicates the voids in pavement after it has been exposed to traffic. Samples of mix were obtained during construction of 10 field projects and tested in the laboratory with six different compactive efforts using various angles of gyration and vertical pressures. Voids were also measured in pavements immediately after construction and after several years of exposure to traffic. Regressions were then developed to allow the prediction of pavement voids from the voids obtained by the laboratory compaction procedures. A high correlation between voids obtained in the laboratory and pavement voids after several years of traffic was obtained with the GTM at two combinations of gyratory angle and vertical pressure; however, the degree of correlation was highly dependent on the inclusion of the postconstruction voids.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/309061563
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1492, Hot-Mix Asphalt Design, Testing, Evaluation, and Performance. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Maupin Jr, G W
- Publication Date: 1995
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 12-17
- Monograph Title: Hot-mix asphalt design, testing, evaluation, and performance
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Serial:
- Transportation Research Record
- Issue Number: 1492
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Alternatives analysis; Asphalt mixtures; Compaction; Correlation analysis; Field tests; Forecasting; Gyratory testing machines; Regression analysis; Void ratios
- Uncontrolled Terms: Field measurements; Laboratory compaction; Voids
- Old TRIS Terms: Correlations
- Subject Areas: Data and Information Technology; Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 00714828
- Record Type: Publication
- ISBN: 309061563
- Files: TRIS, TRB
- Created Date: Dec 4 1995 12:00AM