A rolling dynamic deflectometer (RDD) was developed as a nondestructive method for determining continuous defection profiles of pavements. Unlike other commonly used pavement testing methods, the RDD performs continuous rather than discrete measurements. The ability to perform continuous measurements makes RDD testing very effective for quickly characterizing large sections of pavement while simultaneously providing a comprehensive picture of the pavement condition, with little danger of missing critical pavement features. ROD testing is performed while the RDD vehicle travels at speeds of up to 1.5 mph (2.4 km/hr). Continuous deflection profiles determined with the RDD can be used to: (1) assess the overall stiffness of a pavement; (2) differentiate the relative stiffness of different regions; (3) detect cracks, joints, and weak regions; (4) assess the performance of cracked or jointed regions; (5) delineate the regions of the pavement influenced by joints and cracks; and (6) identify areas where additional discrete testing should be performed. The RDD is a powerful tool having the potential for: (1) designing pavement repairs and retrofits, (2) estimating the remaining life of pavements, and (3) functioning as a quality assurance and quality control system during the construction of new pavements.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Development of a Rolling Dynamic Deflectometer for Continuous Deflection Testing of Pavements


    Beteiligte:
    J. A. Bay (Autor:in) / K. H. Stokoe (Autor:in)

    Erscheinungsdatum :

    1998


    Format / Umfang :

    256 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch