Reclaimed asphalt test specimen preparation assisted by image analysis

Lo Presti, D., Hassan, N. A., Khan, R. and Airey, G. (2015) Reclaimed asphalt test specimen preparation assisted by image analysis. Journal of Materials in Civil Engineering, 27 (8). C4014005/1-C4014005/5. ISSN 1943-5533

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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.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/758286
Keywords: X-ray computed tomography (CT); Image analysis; Gyratory compactor; Reclaimed asphalt; Re-Road
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Civil Engineering
Identification Number: https://doi.org/10.1061/(ASCE)MT.1943-5533.0001012
Depositing User: Eprints, Support
Date Deposited: 20 Feb 2017 14:12
Last Modified: 04 May 2020 17:14
URI: https://eprints.nottingham.ac.uk/id/eprint/40664

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