Reclaimed Asphalt Test Specimen Preparation Assisted by Image Analysis

This paper presents a laboratory investigation aiming at establishing a protocol for the production of homogeneous asphalt mixtures test specimens, incorporating reclaimed asphalt, by using gyratory compactor together 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 voids distribution. A micro structural study was conducted to characterise the homogeneity in the air voids distribution using X-ray Computed Tomography (CT) combined with image analysis techniques. The study concluded that 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.

• Record URL:
  • https://doi.org/10.1061/(ASCE)MT.1943-5533.0001012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • Copyright © 2014 American Society of Civil Engineers.
• Authors:
  • Presti, D Lo
  • Hassan, N A
  • Khan, R
  • Airey, G
• Publication Date: 2015-8

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 27
  • Issue Number: 8
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Air voids; Asphalt mixtures; Image analysis; Laboratory studies; Mastic asphalt; Microstructure; Tomography
• Subject Areas: Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 01504330
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Jan 24 2014 2:29PM