Tensile strength characteristics of contaminated and compacted sand-bentonite mixtures

T. H. Kim, C. K. Kim, S. J. Jung, J. H. Lee

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A theoretical and experimental study of the unconfined penetration test (UP) method was conducted to determine the tensile strength of contaminated and compacted sand-bentonite mixtures, which are used widely in the landfill construction sites as a clay liner. To do this, the original UP device and experimental procedure were modified to reduce the measurement errors and named as the improved unconfined penetration (IUP) test. Experiments were carried out to examine the variation in tensile strength as a function of disk diameter, loading rate and pH level. The results of the experiments provided the following important findings. The tensile strength increases with an increase in the disk diameter. The tensile strength is not sensitive to the loading rate in the range of 0.1%/min-1.0%/min. A specimen compacted with a low pH value of water shows a high tensile strength, because a lower pH solution increases soil particle bonding stresses.

Original languageEnglish
Pages (from-to)653-661
Number of pages9
JournalEnvironmental Geology
Volume52
Issue number4
DOIs
Publication statusPublished - 2007 Apr 1

Fingerprint

Bentonite
bentonite
tensile strength
Tensile strength
Sand
penetration test
sand
clay liner
testing
landfills
Land fill
theoretical study
Measurement errors
landfill
Clay
experimental study
experiment
clay
Experiments
Soils

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Water Science and Technology
  • Pollution
  • Soil Science

Cite this

Kim, T. H. ; Kim, C. K. ; Jung, S. J. ; Lee, J. H. / Tensile strength characteristics of contaminated and compacted sand-bentonite mixtures. In: Environmental Geology. 2007 ; Vol. 52, No. 4. pp. 653-661.
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Tensile strength characteristics of contaminated and compacted sand-bentonite mixtures. / Kim, T. H.; Kim, C. K.; Jung, S. J.; Lee, J. H.

In: Environmental Geology, Vol. 52, No. 4, 01.04.2007, p. 653-661.

Research output: Contribution to journalArticle

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