ELASTIC ANISOTROPY OF TIRE SHREDS

This paper deals with anisotropic elastic properties of large-size tire shreds used as lightweight fills in road and embankment construction. The anisotropy is a result of compaction and overburden pressure, which induce a layered structure of the shreds. Laboratory experiments conducted in a novel biaxial apparatus revealed a difference in Young's moduli perpendicular and parallel to the layered structure; also, Poisson's ratios differ although their values could not be determined accurately. The out-of-plane shear modulus not readily determined from the tests was assessed by means of a layered material model. The results were used for determining the settlement of two road structures containing a layer of tire shreds modeled as either an isotropic or an anisotropic elastic material. Numerical calculations using the code CIRCLY indicated that the effect of tire shreds' anisotropy on road structure settlements is moderate, and the traditional isotropic elastic analysis overestimates the actual settlements.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Heimdahl, T C
  • Drescher, A
• Publication Date: 1999-5

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 383-389
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 125
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Anisotropic materials; Anisotropy (Physics); Compaction; Elastic analysis; Elasticity (Mechanics); Embankments; Experiments; Fills; Isotropic materials; Isotropy; Laboratory tests; Layered soils; Lightweight materials; Poisson ratio; Recycled materials; Settlement (Structures); Shear modulus; Tires; Young's modulus
• Subject Areas: Design; Highways; Planning and Forecasting; Vehicles and Equipment; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00763677
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: May 26 1999 12:00AM