Reclaimed Asphalt Test Specimen Preparation Assisted by Image Analysis
Publication: Journal of Materials in Civil Engineering
Volume 27, Issue 8
Abstract
This paper presents a laboratory investigation aimed at establishing a protocol for the production of homogeneous asphalt mixtures test specimens, incorporating reclaimed asphalt by using a gyratory compactor with coring and trimming works. Stone mastic asphalt specimens were compacted at the previously identified target densities with the final aim of obtaining specimens with a fixed and homogeneous air void distribution. A microstructural study was conducted to characterize the homogeneity in the air void distribution using X-ray computed tomography (CT) combined with image analysis techniques. The study concluded that the gyratory compactor is suitable for producing homogeneous test specimens for the specified mixtures and a set of detailed procedures has been proposed for the production of the compacted specimens and to perform the microstructural study.
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Acknowledgments
This study has been developed within Re-Road a collaborative project financed under the 7th Framework Programme of the European Commission. The authors wish to acknowledge the support of the University of Nottingham, United Kingdom, and special thanks go to numerous laboratory personnel from Nottingham Transportation Engineering Centre who assisted in this study.
References
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 27 • Issue 8 • August 2015
Copyright
This work is made available under the terms of the Creative Commons Attribution 4.0 International license, http://creativecommons.org/licenses/by/4.0/.
History
Received: Aug 30, 2013
Accepted: Dec 27, 2013
Published online: Jan 2, 2014
Discussion open until: Dec 8, 2014
Published in print: Aug 1, 2015
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