Volume 41, Issue 5 (September 2013)

    Investigation of Delamination on I-65 in Indiana

    (Received 2 March 2012; accepted 2 November 2013)

    Published Online: 2013

    CODEN: JTEOAD

      Format Pages Price  
    PDF 9 $25   ADD TO CART


    Abstract

    This paper presents an investigation of delamination on the northbound driving lane of I-65 near Brookston, IN, utilizing field pull-off tests to evaluate interface bonding strength. In addition, ultrasonic test, asphalt binder test, and mix property (mechanical and volumetric) tests [i.e., dynamic shear rheometer (DSR) test, asphalt binder extraction, binder content, sieve analysis, and mix specific gravities] were conducted to explore the cause(s) of delamination. The pull-off test results showed that the delaminated pavement had a weaker interface bond, which generated more top-down fatigue cracking. In addition, the delaminated pavement contained more aged asphalt binder and a higher percentage of air voids, which could have accelerated top-down fatigue cracking as well. In conclusion, the causes of delamination were a combination of weak interface bonding and asphalt mix durability of the surface course.


    Author Information:

    Lee, Jusang
    Materials Research Engineer, Indiana Dept. of Transportation, West Lafayette, Indiana

    Ahn, Hyungjun
    Graduate Research Assistant, Purdue Univ., West Lafayette, Indiana

    Shah, Ayesha
    Research Engineer, North Central Superpave Center, College of Engineering, West Lafayette, Indiana

    Sommer, Kurt
    District Testing Engineer, Indiana Dept. of Transportation, West Lafayette, Indiana


    Stock #: JTE20120020

    ISSN: 0090-3973

    DOI: 10.1520/JTE20120020

    ASTM International is a member of CrossRef.

    Author
    Title Investigation of Delamination on I-65 in Indiana
    Symposium , 0000-00-00
    Committee D04