THE MICRO-DEVAL ABRASION TEST FOR COARSE AND FINE AGGREGATE IN ASPHALT PAVEMENT

Aggregates used in asphalt pavement must be strong and long lasting to withstand processing, hauling, placement, traffic loading and weathering. The abrasion resistance and durability of aggregates for use in asphalt pavement may be evaluated using the micro-Deval abrasion test. In Ontario, development of the micro-Deval test was driven by the need for a simple, inexpensive and precise test to evaluate mechanical strength when wet, predict performance of aggregate, and have a demonstrated correlation with field performance. The micro-Deval test is compared to other test methods used to evaluate abrasion and wear. Since 1992, a number of Canadian provinces have introduced the micro-Deval abrasion test into their aggregate specifications. The micro-Deval test can be used to assess the quality of coarse and fine aggregate for use in hot-mix asphalt. It is a reliable predictor of mechanical breakdown of coarse aggregate and of the amount of weak, soft particles in sand.

• Supplemental Notes:
  • Full conference proceedings available on CD-ROM.
• Corporate Authors:

  University of Texas, Austin

  International Center for Aggregates Research, 3208 Red River
  Austin, TX  United States  78705-2650

  Texas A&M University, College Station

  Faculty Exchange Box H
  College Station, TX  United States  77843
• Authors:
  • Rogers, C A
  • Lane, B C
  • Senior, S A
• Conference:
  • International Center for Aggregates Research 11th Annual Symposium: Aggregates - Asphalt Concrete, Bases and Fines
  • Location: Austin, Texas
  • Date: 2003-4-27 to 2003-4-30
• Publication Date: 2003

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 22p

Subject/Index Terms

• TRT Terms: Abrasion resistance; Abrasion tests; Asphalt pavements; Coarse aggregates; Durability; Fine aggregates; Hot mix asphalt; Performance; Sand; Test procedures
• Identifier Terms: Micro-Deval Abrasion Test
• Geographic Terms: Ontario (Province)
• Subject Areas: Geotechnology; Highways; Materials; I31: Bituminous Binders and Materials; I36: Aggregates;

Filing Info

• Accession Number: 00983533
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 21 2004 12:00AM