Evaluation of Mechanical Properties and Structural Integrity for Pervious Concrete Pavement Systems

    Authors

    I. Gogo-Abite; M. Chopra;I. Uju

    Comments

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    Abbreviated Journal Title

    J. Mater. Civ. Eng.

    Keywords

    Pervious concrete; Compressive strength; Unit weight; Resilient modulus; Falling weight deflectometer; Pavement deflection; Construction & Building Technology; Engineering, Civil; Materials; Science, Multidisciplinary

    Abstract

    Pervious concrete pavements (PCP) are increasingly recognized and used as a best management practice to control stormwater runoff and for low-volume traffic. However, there are limited studies on the structural integrity of the PCP section on performance under vehicular loads. This study investigated the mechanical properties of field samples and the structural integrity of PCP when subjected to traffic loads using the falling weight deflectometer (FWD). The compressive strength for cored samples from the field installation was about 11.5 MPa with an average unit weight of 1,792 kg/m(3). The deflection of the PCP sections at the load application point was about 1.7 to 4 times of the impervious concrete section, dependent on the subbase characterization. The composition of the PCP subbase materials and the compaction effort of the layers significantly affected the deflection. Back-calculation analysis showed that the loosely compacted subbase layers had lower elastic moduli and exhibited higher deflection responses, which compromised the structural integrity of the PCP systems to traffic loadings. (C) 2014 American Society of Civil Engineers.

    Journal Title

    Journal of Materials in Civil Engineering

    Volume

    26

    Issue/Number

    6

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    6

    WOS Identifier

    WOS:000337346700023

    ISSN

    0899-1561

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