Study on mechanical behavior of non-wettable sands

B. S. Kim, Y. Takeshita, S. Kato, S. W. Park

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

1 Citation (Scopus)

Abstract

It is well known that the existence of meniscus water affects the shear strength for unsaturated soils. Although natural soils exist as wettable (hydrophilic) soils generally, it is possible that the natural soils become non-wettable (hydrophobic) soils due to an organic pollutant, natural hazards such as forest fire, and environmental pollution accidents such as oil spill. The non-wettability in soils affects physio-mechanical behaviors, the contact angle and the capillary pressure. The accumulated geotechnical knowledge so far tends to be somewhat limited to wettable soils in the field of unsaturated soil mechanics. Among several research subjects for hydrophobic and hydrophilic sands, this paper presents the empirical verification on which the existence of meniscus water affects the shear behavior for unsaturated soils using artificially synthesized hydrophobic sands. In addition, the obtained shear strengths are discussed by means of the application of the suction stress.

Original languageEnglish
Title of host publicationUnsaturated Soils
Subtitle of host publicationResearch and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014
PublisherTaylor and Francis - Balkema
Pages159-165
Number of pages7
ISBN (Print)9781138026896
Publication statusPublished - Jan 1 2014
Event6th International Conference on Unsaturated Soils, UNSAT 2014 - Sydney, NSW, Australia
Duration: Jul 2 2014Jul 4 2014

Publication series

NameUnsaturated Soils: Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014
Volume1

Other

Other6th International Conference on Unsaturated Soils, UNSAT 2014
CountryAustralia
CitySydney, NSW
Period7/2/147/4/14

ASJC Scopus subject areas

  • Soil Science

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  • Cite this

    Kim, B. S., Takeshita, Y., Kato, S., & Park, S. W. (2014). Study on mechanical behavior of non-wettable sands. In Unsaturated Soils: Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014 (pp. 159-165). (Unsaturated Soils: Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014; Vol. 1). Taylor and Francis - Balkema.