Reclaimed asphalt test specimen preparation assisted by image analysis

Davide Lo Presti, Khan, Hassan, Davide Lo Presti, Gordon Airey

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)C4014005-
Number of pages10
JournalJournal of Materials in Civil Engineering
Volume27
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science
  • Mechanics of Materials

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