IMAGE ANALYSIS EVALUATION OF AGGREGATES FOR ASPHALT CONCRETE MIXTURES

The performance of asphalt concrete mixtures is influenced by the properties of the included aggregates, such as grading, shape (angularity and elongation), and texture (roughness). Complete and accurate quantification of aggregate properties is essential for understanding their influence on asphalt concrete and for selecting aggregates to produce high-quality paving mixtures. Recent developments in the use of digital image analysis techniques for quantifying aggregate morphological characteristics in asphalt concrete are summarized. Image morphological characteristics were used to quantify flatness and elongation of coarse aggregates, to estimate the proportion of natural sand in fine aggregates, and to correlate aggregate characteristics with engineering properties of asphalt concrete mixtures. Image analysis of sections also revealed information about the grading, shape, and orientation of coarse aggregates in a mixture. An overview is presented of the broad range of useful pavement engineering applications of this relatively new approach for evaluating aggregate characteristics.

• Record URL:
  • https://doi.org/10.3141/1615-09
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=IMAGE+ANALYSIS+EVALUATION+OF+AGGREGATES+FOR+ASPHALT+CONCRETE+MIXTURES&author=C.+Kuo&author=R.+Freeman&publication_year=1998
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309064600
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1615, Applications of Emerging Technologies in Transportation.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Kuo, C-Y
  • Freeman, R B
• Publication Date: 1998

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 65-71
• Serial:
  • Transportation Research Record
  • Issue Number: 1615
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Aggregate gradation; Aggregates; Aggregates by shape and surface texture; Asphalt concrete; Coarse aggregates; Fine aggregates; Image analysis; Image processing; Morphology; Properties of materials; Roughness
• Uncontrolled Terms: Aggregate shape
• Old TRIS Terms: Aggregate characteristics
• Subject Areas: Geotechnology; Highways; Materials; I31: Bituminous Binders and Materials; I36: Aggregates;

Filing Info

• Accession Number: 00755169
• Record Type: Publication
• ISBN: 0309064600
• Files: TRIS, TRB, ATRI
• Created Date: Oct 30 1998 12:00AM