BEHAVIOR OF A SANDY SILT REINFORCED WITH DISCONTINUOUS RECYCLED FIBER INCLUSIONS

Laboratory compaction and triaxial compression tests were performed to assess the compaction characteristics and load deformation response of a sandy silt reinforced with randomly oriented recycled carpet fibers. Discrete, randomly distributed fiber inclusions significantly increase the peak shear strength, reduce the postpeak strength loss, increase the axial strain to failure, and, in some cases, change the stress-strain behavior from strain softening to strain hardening for a sandy silt. Fiber inclusions also impede the compaction process, causing a reduction in the maximum dry density of reinforced specimens with increasing fiber content. The strength losses associated with in-service saturation are significantly reduced with fiber reinforcement. It is suggested that large volumes of recycled waste fibers can be used as a value-added product to enhance the shear strength and load deformation response of soils.

• Record URL:
  https://doi.org/10.3141/1714-02
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=BEHAVIOR+OF+A+SANDY+SILT+REINFORCED+WITH+DISCONTINUOUS+RECYCLED+FIBER+INCLUSIONS&author=J.+Murray&author=J.+Frost&author=Y.+Wang&publication_year=2000
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/030906693X
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1714, Recycled and Secondary Materials, Soil Remediation, and In Situ Testing.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Murray, J J
  • Frost, J D
  • Wang, Yinhi
• Publication Date: 2000

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 9-17
• Serial:
  • Transportation Research Record
  • Issue Number: 1714
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Compaction; Deformation; Dry density; Fibers; Laboratory tests; Moisture content; Sandy soils; Shear strength; Silts; Strain hardening; Triaxial shear tests
• Uncontrolled Terms: Recycled carpet fibers; Soil reinforcement
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00800117
• Record Type: Publication
• ISBN: 030906693X
• Files: TRIS, TRB, ATRI
• Created Date: Oct 6 2000 12:00AM