Volume 40, Issue 7 (December 2012)

    Analysis of Colombian Bitumen Modified With a Nanocomposite

    (Received 6 June 2012; accepted 24 September 2012)

    Published Online: 2012

    CODEN: JTEOAD

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    Abstract

    Nanotechnology is giving to materials science new opportunities to develop even further all engineering materials. This paper details the preparation of a nanocomposite aimed to be used as a bitumen modifier, the modification itself, and evaluation of some rheological properties of the modified asphalts intended to build long life asphalt pavements. The bitumen was modified with a polymer nanocomposite and its conventional material (without nanostructure) at three different compositions, while their rheological behavior was compared with the asphalt conditioned under the same temperature and stirring time than the modified binders. Evaluation of the binders was carried out to the samples as prepared and to their residues after Aging—Rolling Thin Film Oven Test. According to the experimental results, the Colombian bitumen modified with the new polymer nanocomposite could undergo much less mass loss under aging conditions than the bitumen modified with its standard material getting, at the same time, higher mechanical resistance, and less accumulated strain without being stress sensitive at high temperatures.


    Author Information:

    Quintero, Luz S.
    Corasfaltos, Sede UIS Guatiguara, Piedecuesta,

    Sanabria, Luis E.
    Corasfaltos, Sede UIS Guatiguara, Piedecuesta,


    Stock #: JTE20120198

    ISSN: 0090-3973

    DOI: 10.1520/JTE20120198

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    Author
    Title Analysis of Colombian Bitumen Modified With a Nanocomposite
    Symposium , 0000-00-00
    Committee D04