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    Volume 49, Issue 6 (October 2020)

    Consolidation and Hydraulic Conductivity of High-Plastic Clay Reinforced with Waste Tire Fibers

    (Received 11 February 2020; accepted 24 July 2020)

    Published Online: 16 October 2020

    CODEN: JTEVAB

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    Abstract

    Extreme shrinkage, high swelling, excessive settlement, and low shear strength are some undesirable properties of clayey soils. Stabilizing the clayey soil by means of chemical admixtures has been widely adopted in the past. As an alternative to these traditional techniques, the present study proposes an economical and environmentally friendly solution that involves the use of waste tire fibers in clayey soil. The waste tire fibers of three aspect ratios of 9, 6.4, and 4.5 were mixed with four different contents, i.e., 0.25, 0.50, 0.75, and 1.00 %, in clayey soil. In the present study, the one-dimensional consolidation behavior of fiber-reinforced clayey soil was investigated with the help of various consolidation parameters. Test results have confirmed that the swelling nature of clayey soil can be controlled remarkably well with the addition of waste tire fibers. The significant reduction in the settlement was observed for the low aspect ratio fibers. The results show that the rate of consolidation of clayey soil increases considerably with the addition of longer and thicker fibers. Thus, the time required for 90 % consolidation is reduced from 64 to 40 minutes for untreated clayey soil. With an increase in fiber content and size, the void ratio in fiber-reinforced clayey soil increased, which further leads to an increase in hydraulic conductivity. It can be stated that the utilization of waste tires as a reinforcing material in clayey soil can be an economical option for the construction industry mainly because it is an ecofriendly use of tire disposal.

    Author Information:

    Mistry, Mohit K.
    Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat,

    Shukla, Shruti J.
    Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat,

    Solanki, Chandresh H.
    Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat,

    Shukla, Sanjay Kumar
    Department of Civil Engineering, Edith Cowan University, Joondalup, Perth

    School of Buidling and Civil Engineering, Fiji National University, Samabula,

    Department of Civil Engineering, VR Siddhartha Engineering College, Vijayawada,


    Stock #: JTE20200079

    ISSN:0090-3973

    DOI: 10.1520/JTE20200079

    Author
    Title Consolidation and Hydraulic Conductivity of High-Plastic Clay Reinforced with Waste Tire Fibers
    Symposium ,
    Committee D18