Volume 28, Issue 6 (November 2005)

    Optimization of Aspect Ratio of Waste Tire Shreds in Sand-Shred Mixtures Using CBR Tests

    (Received 31 July 2003; accepted 8 April 2005)

    Published Online: 2005

    CODEN: GTJOAD

      Format Pages Price  
    PDF Version 6 $25   ADD TO CART


    Abstract

    The advantage of optimizing aspect ratio (length to width) of waste tire shreds on California Bearing Ratio (CBR) of sand-tire shred mixtures is investigated in this paper. The mixtures were composed of a relatively uniform sand and tire shreds with 2-, 3-, and 4-cm widths and various lengths. Shred contents of 15, 30, and 50 % by volume were mixed with sand at two sand matrix unit weights of 15.5 kN/m3 and 16.8 kN/m3. The results show that the influencing parameters on CBR of the mixtures are sand matrix unit weight, shred content, shred width, and aspect ratios of tire shreds. The variation of aspect ratios can increase CBR up to 850%. The average value for the influence of the shred aspect ratio on CBR was about 161%. For a given shred width, there is only a certain length giving the greatest CBR for sand-tire shred mixtures, regardless of shred contents and compaction effort. This is the main objective sought in this paper.


    Author Information:

    Ghazavi, M
    K. N. Toosi University of Technology, Tehran,

    Sakhi, MA
    Isfahan University of Technology, Isfahan,


    Stock #: GTJ12126

    ISSN: 0149-6115

    DOI: 10.1520/GTJ12126

    ASTM International is a member of CrossRef.

    Author
    Title Optimization of Aspect Ratio of Waste Tire Shreds in Sand-Shred Mixtures Using CBR Tests
    Symposium , 0000-00-00
    Committee D18