The Texas Department of Transportation's (TxDOT) recent focus on hot-mix asphalt (HMA) design has been to use the Hamburg wheel tracking device to evaluate the rutting potential and moisture susceptibility of new mixes. Less attention has been paid to crack resistance of new HMA surfaces. This crack resistance is a concern because to perform well in the field an HMA overlay must have a good balance of both rut and crack resistance properties. Stiffer binders and good stone-to-stone contact may provide improved rut resistance, but they may also reduce mix flexibility and crack resistance.


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    Title :

    Developing an Upgraded Overlay Tester System to Characterize the Reflection Cracking Resistance of Asphalt Concrete: Summary Report


    Contributors:
    J. Zhou (author) / T. Scullion (author)

    Publication date :

    2005


    Size :

    4 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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