Development of a Single-Edge Notched Beam Test for Asphalt Concrete Mixtures

    Volume 33, Issue 6 (November 2005)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 7 September 2005

    Page Count: 9


    Wagoner, MP
    Graduate Research Assistant, University of Illinois at Urbana-Champaign, Urbana,

    Buttlar, WG
    Associate Professor, University of Illinois at Urbana-Champaign, Urbana,

    Paulino, GH
    Professor, University of Illinois at Urbana-Champaign, Urbana,

    (Received 9 February 2004; accepted 31 May 2005)

    Abstract

    This paper describes the development of a fracture test for determining the fracture energy of asphalt concrete. The test will be used in combination with numerical analysis and field studies to obtain a better understanding of the mechanisms of reflective cracking in asphalt concrete overlays. A review of the literature revealed that a single-edge notched beam (SE(B)) test specimen was the most promising fracture test for the objectives of the reflective cracking study. Existing servohydraulic testing equipment was modified to perform the SE(B) test along with new loading fixtures, sensors, data collection, and analysis procedures. Preliminary tests were conducted to develop test procedures, to obtain a better understanding of crack-front characteristics, to investigate test repeatability, to examine variations of fracture energy with temperature, and to investigate mixed-mode fracture. The results from the tests follow expected trends and test variability appears to be within a range typical for asphalt concrete fracture testing.


    Paper ID: JTE12579

    DOI: 10.1520/JTE12579

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    Author
    Title Development of a Single-Edge Notched Beam Test for Asphalt Concrete Mixtures
    Symposium , 0000-00-00
    Committee D04