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Liquefaction potential and dynamic properties of sand-tyre chip (STCh) mixtures

Journal Article


Abstract


  • This paper presented the results of the investigations on the liquefaction potential and the

    dynamic properties of sand-tyre chip (STCh) mixtures. A series of strain controlled

    consolidated undrained cyclic triaxial tests were carried out on specimens of sand mixed

    with varying proportions of tyre chips (TCh). The specimens of STCh mixture were prepared

    at a constant initial relative density and tested at an effective confining pressure of 69 kPa.

    The results show that TCh significantly reduces the liquefaction potential of sand with the

    addition of gravimetric proportion of TCh between 20 and 40 % to sand. The maximum

    shear modulus (Gmax) of the STCh mixture was determined by bender element tests for

    different gravimetric proportions of TCh and effective confining pressures. The initial shear

    modulus has been found to be influenced by the proportion of TCh and confining pressure.

    The shear modulus degradation and damping ratio curves were developed for dynamic

    analysis of sand-scrap tyre mixtures. The increase of scrap tyre in sand-scrap tyre mixtures

    reduced the shear modulus degradation and increased the damping ratio.

Publication Date


  • 2016

Citation


  • Mashiri, M. S., Vinod, J. S. & Sheikh, M. N. (2016). Liquefaction potential and dynamic properties of sand-tyre chip (STCh) mixtures. Geotechnical Testing Journal, 39 (1), 69-79.

Scopus Eid


  • 2-s2.0-84959480805

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 69

End Page


  • 79

Volume


  • 39

Issue


  • 1

Place Of Publication


  • United States

Abstract


  • This paper presented the results of the investigations on the liquefaction potential and the

    dynamic properties of sand-tyre chip (STCh) mixtures. A series of strain controlled

    consolidated undrained cyclic triaxial tests were carried out on specimens of sand mixed

    with varying proportions of tyre chips (TCh). The specimens of STCh mixture were prepared

    at a constant initial relative density and tested at an effective confining pressure of 69 kPa.

    The results show that TCh significantly reduces the liquefaction potential of sand with the

    addition of gravimetric proportion of TCh between 20 and 40 % to sand. The maximum

    shear modulus (Gmax) of the STCh mixture was determined by bender element tests for

    different gravimetric proportions of TCh and effective confining pressures. The initial shear

    modulus has been found to be influenced by the proportion of TCh and confining pressure.

    The shear modulus degradation and damping ratio curves were developed for dynamic

    analysis of sand-scrap tyre mixtures. The increase of scrap tyre in sand-scrap tyre mixtures

    reduced the shear modulus degradation and increased the damping ratio.

Publication Date


  • 2016

Citation


  • Mashiri, M. S., Vinod, J. S. & Sheikh, M. N. (2016). Liquefaction potential and dynamic properties of sand-tyre chip (STCh) mixtures. Geotechnical Testing Journal, 39 (1), 69-79.

Scopus Eid


  • 2-s2.0-84959480805

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 69

End Page


  • 79

Volume


  • 39

Issue


  • 1

Place Of Publication


  • United States