Behavior of sand-rubber mixtures according to strain level

Changho Lee, Yong Hoon Byun, Jong Sub Lee

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

Abstract

The behaviors of granular materials are controlled by not only the material stiffness but also strain level. Rigid sand and soft rubber particle mixtures are prepared with various volumetric sand volume fractions (sf). Small strain resonant column, intermediate strain oedometer, and large strain direct shear tests are performed to explore the behavior of the mixtures with different volumetric sand fractions. Threshold stain and minimum damping ratio increase with a decrease in the sand fraction. The linear responses of shear strain and damping ratio with the shear strain are observed at the mixture of sf=0.2. A linear shear wave velocity-void ratio trend is observed for each sand fraction. Shear wave velocity-void ratio and stress-axial strain relations are categorized into three groups according to sand fraction: rubber-like, sand-like, and transitional behavior groups. The friction angle increases with an increase in the sand fraction and no apparent peak strength is observed in the mixture except for sf=1.0. This experimental study suggests that the strain level is one of the important factors to determine the behavior of the mixtures.

Original languageEnglish
Title of host publicationGeoFlorida 2010
Subtitle of host publicationAdvances in Analysis, Modeling and Design - Proceedings of the GeoFlorida 2010 Conference
Pages646-655
Number of pages10
Edition199
DOIs
Publication statusPublished - 2010
EventGeoFlorida 2010: Advances in Analysis, Modeling and Design Conference - West Palm Beach, FL, United States
Duration: 2010 Feb 202010 Feb 24

Publication series

NameGeotechnical Special Publication
Number199
ISSN (Print)0895-0563

Other

OtherGeoFlorida 2010: Advances in Analysis, Modeling and Design Conference
CountryUnited States
CityWest Palm Beach, FL
Period10/2/2010/2/24

Keywords

  • Granular media
  • Mixtures
  • Sand, Soil type
  • Soil properties

ASJC Scopus subject areas

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

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