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Axial compressive behaviour of concrete confined with polymer grid

Journal Article


Abstract


  • This study presents results of an experimental investigation on the axial

    compressive behaviour of concrete confined with polymer grid. A total of

    14 concrete specimens with 150 mm diameter and 300 mm height were

    prepared and tested under axial compression. Two types (Type A and Type

    B) of polymer grid with different mechanical properties were selected. Type

    A polymer grid (36 mm × 36 mm) was manufactured from polypropylene

    fibres, while Type B polymer grid (36 mm × 24 mm) was manufactured

    from high modulus polyester fibres. For each type of polymer grid, one

    layer, two layers, and three layers were used to investigate the influence of

    the amount of polymer grid confinement on the axial compressive

    behaviour of concrete specimens. The test results show that concrete

    specimens confined with polymer grid obtained much higher deformation

    capacity than unconfined concrete specimens, although the improvement in

    the strength was not highly significant. Type A polymer grid performed

    better in improving the strength and deformation capacity of concrete

    specimens than Type B polymer grid. The test results indicate that polymer

    grid can be used as a secondary confinement reinforcement for concrete

    specimens. Based on the analysis of test results in this study as well as test

    results from previous studies, an empirical model for the polymer grid

    confined concrete was developed. The developed empirical model predicts

    the peak strength, axial strain at peak strength, strength at ultimate strain,

    and ultimate strain of polymer grid confined concrete with good accuracy.

Publication Date


  • 2016

Citation


  • Wang, W., Sheikh, M. Neaz. & Hadi, M. N. S. (2016). Axial compressive behaviour of concrete confined with polymer grid. Materials and Structures, 49 (9), 3893-3908.

Scopus Eid


  • 2-s2.0-84948650588

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5167

Has Global Citation Frequency


Number Of Pages


  • 15

Start Page


  • 3893

End Page


  • 3908

Volume


  • 49

Issue


  • 9

Place Of Publication


  • Netherlands

Abstract


  • This study presents results of an experimental investigation on the axial

    compressive behaviour of concrete confined with polymer grid. A total of

    14 concrete specimens with 150 mm diameter and 300 mm height were

    prepared and tested under axial compression. Two types (Type A and Type

    B) of polymer grid with different mechanical properties were selected. Type

    A polymer grid (36 mm × 36 mm) was manufactured from polypropylene

    fibres, while Type B polymer grid (36 mm × 24 mm) was manufactured

    from high modulus polyester fibres. For each type of polymer grid, one

    layer, two layers, and three layers were used to investigate the influence of

    the amount of polymer grid confinement on the axial compressive

    behaviour of concrete specimens. The test results show that concrete

    specimens confined with polymer grid obtained much higher deformation

    capacity than unconfined concrete specimens, although the improvement in

    the strength was not highly significant. Type A polymer grid performed

    better in improving the strength and deformation capacity of concrete

    specimens than Type B polymer grid. The test results indicate that polymer

    grid can be used as a secondary confinement reinforcement for concrete

    specimens. Based on the analysis of test results in this study as well as test

    results from previous studies, an empirical model for the polymer grid

    confined concrete was developed. The developed empirical model predicts

    the peak strength, axial strain at peak strength, strength at ultimate strain,

    and ultimate strain of polymer grid confined concrete with good accuracy.

Publication Date


  • 2016

Citation


  • Wang, W., Sheikh, M. Neaz. & Hadi, M. N. S. (2016). Axial compressive behaviour of concrete confined with polymer grid. Materials and Structures, 49 (9), 3893-3908.

Scopus Eid


  • 2-s2.0-84948650588

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5167

Has Global Citation Frequency


Number Of Pages


  • 15

Start Page


  • 3893

End Page


  • 3908

Volume


  • 49

Issue


  • 9

Place Of Publication


  • Netherlands