To overcome the challenges associated with natural aggregate shortage and the disposal of construction and demolition waste, recycled concrete aggregate (RCA) has been increasingly used in Portland cement concrete (PCC) pavement as a virgin aggregate replacement. The work in this study involved conducting a performance evaluation of the existing RCA-PCC pavements in Oklahoma from different aspects, including: laboratory determination of mechanical properties; a petrographic examination of the concrete; a field evaluation using a falling weight deflectometer (FWD) testing; and distress surveys to assess pavement behavior. The laboratory testing of the field cores confirmed that the addition of RCA into PCC causes a reduction in the modulus of elasticity and tensile strength; the reclaimed mortar was found to be the primary weak zone through which cracks pass. The surface condition survey data and analysis of the FWD results match each other, indicating that the RCA joined plain concrete pavement (JPCP) section exhibited lower performance compared with the control JPCP section. But this trend was not as definitive for continuously reinforced concrete pavement (CRCP). The relatively good performance of the RCA CRCP results from the section being rested on a stronger asphalt concrete base layer. Additionally, the inherent stiffness fundamental to the behavior of CRCP provides a superior level of protection of the base from erosion damage compared with a jointed pavement. The findings indicate that erosion-resistant base support and good load transfer are essential design considerations for JPCP made of RCA-PCC. CRCP appears to be more suitable for the use of RCA-PCC.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Long-Term Performance Evaluation of Concrete Pavements Containing Recycled Concrete Aggregate in Oklahoma


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    2019-04-04




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Performance of Rigid Pavements Containing Recycled Concrete Aggregate

    Gress, David L. / Snyder, Mark B. / Sturtevant, Jeffrey R. | Transportation Research Record | 2009




    Performance of Rigid Pavements Containing Recycled Concrete Aggregates

    Cuttell, Gregory D. / Snyder, Mark B. / Vandenbossche, Julie M. et al. | Transportation Research Record | 1997


    Post-Cracking Cyclic Shear Performance of Recycled Aggregate Concrete for Pavements

    Ozturk, Onur / Yildirim, Hasan / Ozyurt, Nilufer et al. | Transportation Research Record | 2025