Full-scale trafficking tests were conducted to evaluate the effect of novel polymeric-alloy geocell reinforcement on base courses for low-volume unpaved roads over weak subgrade. Three types of in-fill materials—crushed limestone (AB-3) aggregate, quarry waste (QW), and recycled asphalt pavement (RAP)—were used for the base courses over a weak subgrade layer consisting of A-7-6 clay. Four unpaved sections that included one unreinforced control section of AB-3 aggregate 30 cm thick and three 17-cm novel polymeric-alloy geocell-reinforced sections were tested under a single-axle dual-tire wheel loading. The road sections were exhumed and examined after the moving-wheel test. The benefits of novel polymeric-alloy geocell reinforcement were evaluated in relation to rut depths for a specific number of passes of the wheel load and the angle of stress distribution from the surface to the base course–subgrade interface. The test results demonstrated that the novel polymeric-alloy geocell reinforcement improved the performance of unpaved AB-3 and RAP sections. The QW section also showed better performance in relation to stress distribution angle.


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    Titel :

    Accelerated Pavement Testing of Geocell-Reinforced Unpaved Roads over Weak Subgrade


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:
    Pokharel, Sanat Kumar (Autor:in) / Han, Jie (Autor:in) / Manandhar, Chandra (Autor:in) / Yang, Xiaoming (Autor:in) / Leshchinsky, Dov (Autor:in) / Halahmi, Izhar (Autor:in) / Parsons, Robert L. (Autor:in)


    Erscheinungsdatum :

    01.01.2011




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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