Texture Analysis of Aggregates for Wearing Courses in Asphalt Pavements

It is well known that the wear of road pavement skid resistance is associated with a change in the geometrical characteristics of the micro- or macro-texture of aggregates of pavement surface. So, a study of the relationship between texture and skid resistance, to find suitable correlations, is of interest for research in road pavement materials. In this work the relationship between adherence and aggregate texture is analyzed, using superficial geometrical profiles, by means of both aggregate descriptors and the power spectral density function (PSD). In particular, a methodology for a surface texture analysis of aggregates for pavement wearing courses is presented which demonstrates the support given by both micro- and macro-texture, resulting in some indicators that can be related to pavement adherence. The results are, also, useful in order to explain the basic physic phenomenon between friction and the surface profile proprieties of aggregates. For research purposes, a procedure was established for the preparation and analysis of aggregates in order to carry out a survey of their geometrical profiles using laboratory samples which underwent an accelerated polishing control test (CLA).

• Record URL:
  http://www.informaworld.com/10.1080/10298430600898307
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/44544515
• Supplemental Notes:
  • Abstract reprinted with permission from Taylor and Francis
• Authors:
  • Cafiso, Salvatore
  • Taormina, Sabina
• Publication Date: 2007

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Illustrations; Photos; References; Tables;
• Pagination: pp 45-54
• Serial:
  • International Journal of Pavement Engineering
  • Volume: 8
  • Issue Number: 1
  • Publisher: Taylor & Francis
  • ISSN: 1029-8436
  • Serial URL: http://www.tandf.co.uk/journals/titles/10298436.html

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt concrete; Asphalt pavements; Density; Friction; Geometric elements; Pavements; Power spectra; Roads; Skid resistance; Surface texture tests; Texture; Wearing course (Pavements)
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01049997
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 20 2007 10:41AM