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.

Lo Presti, D., Hassan, N., Khan, R., Airey, G. (2015). Reclaimed asphalt test specimen preparation assisted by image analysis. JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 27(8), C4014005 [10.1061/(ASCE)MT.1943-5533.0001012].

Reclaimed asphalt test specimen preparation assisted by image analysis

Lo Presti, D.;
2015-01-01

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.
http://ascelibrary.org/mto/resource/1/jmcee7/
Lo Presti, D., Hassan, N., Khan, R., Airey, G. (2015). Reclaimed asphalt test specimen preparation assisted by image analysis. JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 27(8), C4014005 [10.1061/(ASCE)MT.1943-5533.0001012].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/418254
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