Interaction between reinforcing geosynthetics and soil-tire chip mixtures

Journal Article · Sun Nov 01 04:00:00 EST 1998 · Journal of Geotechnical and Geoenvironmental Engineering

DOI:https://doi.org/10.1061/(ASCE)1090-0241(1998)124:11(1109)· OSTI ID:669976

Tatlisoz, N ^[1]; Edil, T B; Benson, C H ^[2]

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1. International United Consultants, Inc., Istanbul (Turkey)
2. Univ. of Wisconsin, Madison, WI (United States). Civil and Environmental Engineering

The objective of the present study was to evaluate the mechanical properties of tire chips and soil-tire chip mixtures relevant to geosynthetic-reinforced earthworks. Tests were conducted to evaluate shear strength and pull-out capacity with a woven geotextile and two geogrids. Soil-tire chip mixtures made with clean sand and sandy silt were tested. These properties were then used to assess the potential advantages of using soil-tire chip backfills for geosynthetic-reinforced retaining walls and embankments. The test results show that the geosynthetic pull-out force in tire chip and soil-tire chip backfills increases with displacement--i.e., no peak pull-out force is generally obtained, at least for displacements {le}100 mm. Pull-out interaction coefficients for the chip backfills are typically greater than 1, whereas for soil-tire chip backfills are typically greater than 1, whereas for soil-tire chip backfills they typically range between 0.2 and 0.7, even though the pull-out capacity for soil-tire chip backfills is generally similar to or greater than the pull-out capacity in a soil backfill. The higher strength, lower unit weight and good backfill-geosynthetic interaction obtained with soil-tire chip backfills can result in walls requiring less geosynthetic reinforcement than walls backfilled with soil. In addition, embankments can potentially be constructed with steeper slopes and a smaller volume of material when soil-tire chip fill is used, while providing greater resistance against lateral sliding and foundation settlement.

• Sponsoring Organization: USDOE
• OSTI ID: 669976
• Journal Information: Journal of Geotechnical and Geoenvironmental Engineering, Journal Name: Journal of Geotechnical and Geoenvironmental Engineering Journal Issue: 11 Vol. 124; ISSN 1090-0241; ISSN JGGEFK
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
BACKFILLING
EMBANKMENTS
GRANULAR MATERIALS
MECHANICAL PROPERTIES
MIXTURES
SHEAR PROPERTIES
SOILS
TIRES
WALLS
WASTE PRODUCT UTILIZATION