Brief note on the influence of shape and percentage of gravel on the shear strength of sand and gravel mixtures

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The paper records the influence of the shape and the percentage of gravel on the shear strength/frictional angle of sand and gravel mixtures using direct shear tests. The shear strength is mainly derived from the frictional forces developed due to sliding and interlock; they depend on the maximum particle size and shape, the uniformity coefficient, density and the effective normal stress. As the size of material in a mixture is variable, the shear strength also depends upon the ratio of the specimen diameter to the maximum particle particle size. In this study, tow different shapes of limestone were used, angular and rounded, and the maximum gravel size was 6.3 mm in diameter. Air-dried samples were used in the tests. It is concluded that the shape and percentage of gravel have an important influence on the shear strength properties.

Original languageEnglish
Pages (from-to)321-323
Number of pages3
JournalBulletin of Engineering Geology and the Environment
Volume60
Issue number4
DOIs
Publication statusPublished - Nov 22 2001
Externally publishedYes

Fingerprint

Gravel
sand and gravel
Shear strength
shear strength
gravel
Sand
Particle size
particle size
shear test
Limestone
sliding
limestone
air
Air

Keywords

  • Granular soils
  • Particle shape
  • Particle size
  • Shear strength

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

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abstract = "The paper records the influence of the shape and the percentage of gravel on the shear strength/frictional angle of sand and gravel mixtures using direct shear tests. The shear strength is mainly derived from the frictional forces developed due to sliding and interlock; they depend on the maximum particle size and shape, the uniformity coefficient, density and the effective normal stress. As the size of material in a mixture is variable, the shear strength also depends upon the ratio of the specimen diameter to the maximum particle particle size. In this study, tow different shapes of limestone were used, angular and rounded, and the maximum gravel size was 6.3 mm in diameter. Air-dried samples were used in the tests. It is concluded that the shape and percentage of gravel have an important influence on the shear strength properties.",
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AB - The paper records the influence of the shape and the percentage of gravel on the shear strength/frictional angle of sand and gravel mixtures using direct shear tests. The shear strength is mainly derived from the frictional forces developed due to sliding and interlock; they depend on the maximum particle size and shape, the uniformity coefficient, density and the effective normal stress. As the size of material in a mixture is variable, the shear strength also depends upon the ratio of the specimen diameter to the maximum particle particle size. In this study, tow different shapes of limestone were used, angular and rounded, and the maximum gravel size was 6.3 mm in diameter. Air-dried samples were used in the tests. It is concluded that the shape and percentage of gravel have an important influence on the shear strength properties.

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