Effect of artificial cementation on cone tip resistance and small strain shear modulus of sand

Moon Joo Lee, Hyunwook Choo, Jaejeong Kim, Woojin Lee

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A series of cone penetration and bender element tests were performed on sands artificially cemented with gypsum in a calibration chamber to investigate the effect of cementation on the cone tip resistance (qc) and small strain shear modulus (Gmax) of sand. It was found that both the qc and Gmax of cemented sand are significantly affected by the degree of cementation while the effects of stress and density are reduced due to the cementation bonds. As the degree of cementation increases, the relationship between the of cemented sand is observed to be similar to that of quartz sand with low compressibility. As the density and stress level affect qc more significantly than Gmax, the Gmax/qc of cemented sand decreases with increasing qc. However, as the cementation causes a larger increase in Gmax than qc, the Gmax/qc ratio of cemented sand increases as the gypsum content increases. It was also observed from the relation that the Gmax/qc ratio of cemented sand locates above the upper bound suggested by previous studies.

Original languageEnglish
Pages (from-to)193-201
Number of pages9
JournalBulletin of Engineering Geology and the Environment
Volume70
Issue number2
DOIs
Publication statusPublished - 2011 May 1

Keywords

  • Cementation
  • Cone tip resistance
  • Small strain shear modulus
  • Stress level

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

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