Elastic waves in salt-cemented granular soils

Yong Hun Eom, Q. Hung Truong, Yong Hoon Byun, M. Khoa Tran, Jong Sub Lee

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

Abstract

Naturally cemented phenomenon may have an effect to the mechanical behavior of soils. Dissolved salt, one of the most common soluble materials in geotechnical engineering soils, can create a cementation condition due to drying process of soil media. This study concentrates in investigating the characteristics of elastic waves in granular soils cemented by dissolved salt. Specimens, that were preparing using three different sizes of glass beads, 0.26, 0.5 and 1.29 mm in median diameter mixing with salt water having various concentrations of 0, 0.1, 0.2, 0.5, 1.0, and 2.0 M NaCl, are used. The elastic waves including P-and S-waves, generated by bender elements and piezo disk elements, were applied to explore the specimens. The evolution of P-wave and S-wave velocities during drying process show three stages according to the degree of saturation: 1) S-wave velocities increase and P-wave velocities reduce when the degree of saturation reduces from 100% to 90%; 2) P-& S-wave velocities have a minor change with degree of saturation of 90%-10%; 3) The velocities increase significantly when the specimens are with degree of saturation of 10%-0%. The resonant frequencies of S-waves show a similar trend as the S-wave velocities. This study describes the meaningful trends of elastic waves in geo-materials cemented by dissolved salt.

Original languageEnglish
Title of host publicationGeomechanics and Geotechnics
Subtitle of host publicationFrom Micro to Macro - Proceedings of the International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010
Pages217-220
Number of pages4
Publication statusPublished - 2011
EventInternational Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010 - Shanghai, China
Duration: 2010 Oct 102010 Oct 12

Publication series

NameGeomechanics and Geotechnics: From Micro to Macro - Proceedings of the International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010
Volume1

Other

OtherInternational Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010
CountryChina
CityShanghai
Period10/10/1010/10/12

Keywords

  • P-wave
  • Resonant frequency
  • S-wave
  • Salt cementation
  • Unsaturated

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Eom, Y. H., Truong, Q. H., Byun, Y. H., Tran, M. K., & Lee, J. S. (2011). Elastic waves in salt-cemented granular soils. In Geomechanics and Geotechnics: From Micro to Macro - Proceedings of the International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010 (pp. 217-220). (Geomechanics and Geotechnics: From Micro to Macro - Proceedings of the International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010; Vol. 1).