ASPHALT CONTENT DETERMINATION BY THE IGNITION METHOD. SUMMARY REPORT

This paper describes the development and testing for the ignition method for determining asphalt content and aggregate gradation of asphalt-aggregate mixtures. The ignition method utilizes the mass of hot-mixed asphalt mixture before and after removal of asphalt cement by burning at 593 deg C (1100 deg F) to measure asphalt content. The recovered aggregate from ignition testing may also be used for gradation analysis. The test procedure is safer and simpler than current methods of asphalt content and gradation determination. The ignition method was evaluated in both the laboratory and field. In the laboratory, ignition testing was performed on 80 samples of hot-mixed asphalt. The ignition method proved to be precise and accurate in determining both asphalt content and aggregate gradation.

• Corporate Authors:

  National Center for Asphalt Technology

  Auburn University, 277 Technology Parkway
  Auburn, AL  United States  36830

  Alabama Department of Transportation

  Bureau of Research and Development, 1409 Coliseum Boulevard
  Montgomery, AL  United States  36130-3050

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Brown, E R
  • Murphy, N E
• Publication Date: 1994-7

Language

• English

Media Info

• Features: References;
• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Accuracy; Aggregate gradation; Asphalt content; Asphalt mixtures; Field tests; Hot mix asphalt; Ignition; Laboratory tests; Precision
• Uncontrolled Terms: Ignition method
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00667599
• Record Type: Publication
• Report/Paper Numbers: FHWA/AL-110A
• Contract Numbers: 930-285
• Files: TRIS, USDOT, STATEDOT
• Created Date: Oct 5 1994 12:00AM