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Title: CORRELATION OF SELECTED LABORATORY COMPACTION METHODS WITH FIELD COMPACTION
Accession Number: 00676650
Record Type: Component
Availability: Find a library where document is available Abstract: It is well established that method of compaction affects the physical properties of compacted asphalt concrete specimens. When evaluating asphalt concrete mixtures in the laboratory, it is desirable to fabricate compacted specimens that closely duplicate the properties of the actual road pavement. The goal was to determine which of four laboratory compaction methods (Exxon rolling wheel, Texas gyratory, rotating base Marshall hammer, and the Elf linear kneading compactor) most nearly simulate field compaction. Field cores were obtained from five different highway pavements. Laboratory specimens were fabricated using materials and mixture designs identical to those used in the pavement cores. Where achievable, they were expected to have the same air-voids range as the pavement cores. Various physical properties of pavement cores as well as the laboratory specimens were measured. The test results were compared and statistically analyzed to determine similarity. From the statistical analysis of the test data, the Texas gyratory compactor simulated pavement cores most often. The Exxon rolling wheel and Elf compactor simulated pavement cores with equal frequency. The rotating base Marshall hammer was similar to the pavement cores least often. From an overall statistical standpoint, however, it cannot be stated with confidence that any one compaction method more closely simulated field compaction than any one of the other three methods tested. The rolling wheel compactor exhibited difficulties in controlling the air voids of the compacted specimens to such an extent that the desired range of air void contents was never attained with this compactor.
Supplemental Notes: This paper appears in Transportation Research Record No. 1454, Asphalt Concrete Mixture Design 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
Monograph Title: Monograph Accession #: 01401258
Language: English
Authors: Button, Joe WLittle, Dallas NJagadam, VidyasagarPendleton, Olga JPagination: p. 193-201
Publication Date: 1994
Serial: ISBN: 0309060621
Features: Figures
(6)
; References
(11)
; Tables
(4)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Data and Information Technology; Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials
Files: TRIS, TRB, ATRI
Created Date: Apr 21 1995 12:00AM
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