Identifying Influences on and Minimizing the Variability of Ignition Furnace Correction Factors

The objectives of this research are to (1) determine the significant influences that affect the variability of asphalt and aggregate correction factors for ignition furnaces; (2) develop guidelines for the installation, operation, and maintenance of ignition furnaces to minimize the variability in correction factors between furnaces; and (3) develop and document a statistically valid correction factor verification procedure to identify and troubleshoot causes for non-comparing, statistically different, or biased results of AASHTO T 308.This research shall focus on the influence of the installation, operation, and maintenance of current commercial ignition furnaces on correction factors. However, the potential interactions of mix components may also be considered, if judged relevant. As used herein, the term “ignition furnace(s)” encompasses (1) convection and direct infrared units; (2) units with internal and external weighing; (3) commercially available units; and (4) units located in the same or different laboratories.


  • English


  • Status: Completed
  • Funding: $500000
  • Contract Numbers:

    Project 09-56

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Harrigan, Edward

  • Performing Organizations:

    National Center for Asphalt Technology

    277 Technology Parkway
    Auburn, AL  United States  36830
  • Principal Investigators:

    Rodezno, M

  • Start Date: 20140415
  • Expected Completion Date: 20161231
  • Actual Completion Date: 20161231
  • Source Data: RiP Project 37714

Subject/Index Terms

Filing Info

  • Accession Number: 01543530
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 09-56
  • Files: TRB, RiP
  • Created Date: Nov 18 2014 1:00AM