A Procedure to Quantify Organic Antistrip Additives in Asphalt Binders and Mixes

    Volume 34, Issue 4 (July 2006)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 18 January 2006

    Page Count: 6


    Chen, C
    Graduate Research Assistant, and Associate Professors, North Carolina State University, Raleigh, NC

    Tayebali, AA
    Graduate Research Assistant, and Associate Professors, North Carolina State University, Raleigh, NC

    Knappe, DRU
    Graduate Research Assistant, and Associate Professors, North Carolina State University, Raleigh, NC

    (Received 30 September 2004; accepted 13 October 2005)

    Abstract

    Stripping is a phenomenon of loss of bond or adhesion between the asphalt binder and the aggregate in asphalt mixes. Stripping frequently results from the presence of water, and most agencies require the use of antistrip additive to control moisture damage. However, there is no simple and quick method for detecting the presence and the amount or percentage of organic antistrip additive in asphalt binders or mixes. This paper presents a procedure based on solid-state spectrophotometry to detect qualitatively and quantitatively the presence of amine-based antistrip additive in asphalt binders and mixes. The developed procedure gives results that are quantifiable and reproducible with low coefficients of variation.


    Paper ID: JTE12733

    DOI: 10.1520/JTE12733

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    Author
    Title A Procedure to Quantify Organic Antistrip Additives in Asphalt Binders and Mixes
    Symposium , 0000-00-00
    Committee D04