MICRO-DEVAL TESTING OF AGGREGATES IN THE SOUTHEAST

Aggregates to be utilized in hot mix asphalt (HMA) must be both tough and durable. Aggregates must withstand the effects of HMA production, transportation, and construction. Additionally, once place on the roadway, aggregates must also resist the effects of traffic and the environment. The Micro-Deval test was developed in France during the 1960s and was based on the Deval test developed in the early 1900s. The Micro-Deval test provides a measure of abrasion resistance and durability of mineral aggregates through the actions of abrasion between aggregate particles and between aggregate particles and steel balls in the presence of water. Because of the success that others have had with the Micro-Deval test method in characterizing coarse aggregates, a study was needed to characterize aggregates common to the Southeast utilizing this new test method. Results of Micro-Deval testing also need to be compared to typically used toughness/durability tests. The objective of this research was to characterize the toughness/durability of selected aggregates from throughout the Southeastern United States with respect to their Micro-Deval test results. This study involved comparisons between Micro-Deval test results and typically used toughness/durability tests.

• Record URL:
  • http://www.eng.auburn.edu/research/centers/ncat/files/reports/2002/rep02-09.pdf
• 
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/16074
• Corporate Authors:

  National Center for Asphalt Technology

  Auburn University, 277 Technology Parkway
  Auburn, AL  United States  36830
• Authors:
  • Cooley Jr, L A
  • Huner, M S
  • James, R H
• Publication Date: 2002-10

Language

• English

Media Info

• Features: References;
• Pagination: 35 p.

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt mixtures; Asphalt pavements; Coarse aggregates; Durability; Hot mix asphalt; Test procedures; Testing; Toughness
• Identifier Terms: Micro-Deval
• Geographic Terms: Southeastern United States
• Subject Areas: Geotechnology; Highways; I36: Aggregates;

Filing Info

• Accession Number: 00943808
• Record Type: Publication
• Report/Paper Numbers: NCAT Report No. 02-09
• Files: NTL, TRIS
• Created Date: Jun 3 2003 12:00AM