Comparing Superpave Gyratory Compactor Data to Field Cores
Publication: Journal of Materials in Civil Engineering
Volume 16, Issue 1
Abstract
Achieving proper compaction of asphalt pavement is crucial to its longevity and acceptable performance. Laboratory compaction is an essential part of mix design. In order for the mix design process to be effective, laboratory compaction must adequately simulate field compaction. This study used mechanical properties measured with the Superpave shear tester to evaluate field compaction and laboratory compaction. The field compaction consisted of three test sections with different compaction patterns. The laboratory compaction used the Superpave gyratory compactor with adjustments to several parameters. Results of this study indicate that current gyratory protocol produces specimens with significantly different mechanical properties than field cores produced with the same material and compacted to the same air voids. Results also show that adjustments to certain parameters of the gyratory can produce specimens that better simulate the mechanical properties of pavement cores.
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References
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Information
Published In
Journal of Materials in Civil Engineering
Volume 16 • Issue 1 • February 2004
Pages: 78 - 83
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: May 10, 2002
Accepted: Apr 9, 2003
Published online: Jan 16, 2004
Published in print: Feb 2004
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