Thin-lift hot-mix asphalt (HMA) layers are utilized in almost every maintenance and rehabilitation application. These mix types require smaller maximum particle sizes than do most conventional HMA surface layers. Although the primary functions of thin-lift HMA are to level the pavement surface, smooth the surface, or slow the deterioration of the existing pavement, or all three, these mixes may also provide some structural improvement, depending on the layer thickness placed. The use of manufactured aggregate screenings (fine aggregate stockpiles) as the sole aggregate portion of an HMA mixture was evaluated in this study. Mixes of this nature have the potential for use as thin-lift HMA layers. Two different sources of aggregate screenings, granite and limestone, were utilized to design mixtures at varying design air void contents and then tested for rut susceptibility. The use of a neat versus a modified asphalt binder was also evaluated, as well as the potential advantages of cellulose fiber additives. These mixtures using 100% manufactured screenings proved to be acceptable with regard to rutting resistance. No work was performed in this study to examine thermal cracking or durability.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Use of Screenings to Produce Hot-Mix Asphalt Mixtures


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2003-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Use of Screenings to Produce Hot-Mix Asphalt Mixtures

    Cooley Jr, L.Allen | Online Contents | 2003


    Rex triturator for sewage screenings

    Townend, C.B. | Engineering Index Backfile | 1938


    Asphalt and Asphalt Mixtures

    Zhang, Haitao | GWLB - Gottfried Wilhelm Leibniz Bibliothek | 2019

    Free access

    Asphalt and Asphalt Mixtures

    Zhang, Haitao | TIBKAT | 2019

    Free access

    Selective fiber recovery from sulfite screenings

    Kott, R. | Engineering Index Backfile | 1962