Large-scale shear testing of tire-derived aggregates (TDA)

Ming Xiao, Martin Ledezma, Corbin Hartman

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper reports a large-scale direct shear testing of tire-derived aggregates (TDA) of large sizes (25 to 75 mm). TDA are pieces of processed and shredded waste tires that can be used as lightweight and quick fills for embankments, subgrades, and retaining wall backfills. A large-scale direct shear apparatus was built to obtain the shear strength of the large-sized material. The shear box dimensions were 78 cm wide, 80 cm long, and 122 cm tall. The lower shear box was driven by a hydraulic piston, while the upper shear box remained stationary. The horizontal shear forces, shear displacements, and vertical forces were recorded by an automatic data acquisition system. Four normal loads were applied on the TDA to simulate overburden pressures of 24, 48, 96, and 144 kPa (or 500, 1000, 2000, and 3000 lb/ft2). Duplicate tests were performed to verify the repeatability. Under each normal stress, the shear stress vs. deformation curve was plotted, and the maximum shear stress was obtained. Mohr-Coulomb failure criterion was developed, and the cohesion and friction angle were obtained.

Original languageEnglish (US)
Title of host publicationGeo-Congress 2014 Technical Papers
Subtitle of host publicationGeo-Characterization and Modeling for Sustainability - Proceedings of the 2014 Congress
PublisherAmerican Society of Civil Engineers (ASCE)
Number of pages10
Edition234 GSP
ISBN (Print)9780784413272
StatePublished - 2014
Event2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014 - Atlanta, GA, United States
Duration: Feb 23 2014Feb 26 2014

Publication series

NameGeotechnical Special Publication
Number234 GSP
ISSN (Print)0895-0563


Other2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014
Country/TerritoryUnited States
CityAtlanta, GA

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology


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