Preparation of Reconstituted Sand Specimens

Y. P. Vaid, D. Negussey

Research output: Chapter in Book/Entry/PoemConference contribution

146 Scopus citations

Abstract

Review and assessment of sand sample preparation techniques from both theoretical and experimental viewpoints are presented. Sample densities obtained by air pluviation are shown to be sensitive to rate of pouring and drop height. Terminal velocity is reached at a very small drop height, and homogeneous samples of the same initial density tend to be formed by pluviation of uniform sand in water. Uniformly dense samples obtained by vibration of loose pluviated samples show no detectable difference in behavior when compared to samples densified by control of drop height only. Effective confinement during densification by vibration appears to prevent formation of a loose top layer. A loose top layer in an otherwise dense sample leads to a marked decrease in hquefaction resistance. Preparation of triaxial sand samples by pluviation in water is recommended because it results in initially saturated specimens, and homogeneous samples of desired densities can be replicated without difficulty.

Original languageEnglish (US)
Title of host publicationAdvanced Triaxial Testing of Soil and Rock
EditorsRobert T. Donaghe, Ronald C. Chaney, Marshall L. Silver
PublisherASTM International
Pages405-417
Number of pages13
ISBN (Electronic)9780803109834
DOIs
StatePublished - 1988
Externally publishedYes
Event1986 Symposium on Advanced Triaxial Testing of Soil and Rock - Louisville, United States
Duration: Jun 19 1986Jun 20 1986

Publication series

NameASTM Special Technical Publication
VolumeSTP 977
ISSN (Print)0066-0558

Conference

Conference1986 Symposium on Advanced Triaxial Testing of Soil and Rock
Country/TerritoryUnited States
CityLouisville
Period6/19/866/20/86

Keywords

  • density
  • pluviation
  • sand
  • triaxial sample

ASJC Scopus subject areas

  • General Materials Science

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