The effect of grain size and cement content on index properties of weakly solidified artificial sandstones

Hadi Atapour, Ali Mortazavi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The effects of textural characteristics, especially grain size, on index properties of weakly solidified artificial sandstones are studied. For this purpose, a relatively large number of laboratory tests were carried out on artificial sandstones that were produced in the laboratory. The prepared samples represent fifteen sandstone types consisting of five different median grain sizes and three different cement contents. Indices rock properties including effective porosity, bulk density, point load strength index, and Schmidt hammer values (SHVs) were determined. Experimental results showed that the grain size has significant effects on index properties of weakly solidified sandstones. The porosity of samples is inversely related to the grain size and decreases linearly as grain size increases. While a direct relationship was observed between grain size and dry bulk density, as bulk density increased with increasing median grain size. Furthermore, it was observed that the point load strength index and SHV of samples increased as a result of grain size increase. These observations are indirectly related to the porosity decrease as a function of median grain size.

Original languageEnglish
Pages (from-to)613-619
Number of pages7
JournalJournal of Geophysics and Engineering
Volume15
Issue number2
DOIs
Publication statusPublished - Feb 15 2018
Externally publishedYes

Keywords

  • dry bulk density
  • effective porosity
  • median grain size
  • point load strength index
  • textural characteristics
  • weakly solidified sandstones

ASJC Scopus subject areas

  • Geophysics
  • Geology
  • Industrial and Manufacturing Engineering
  • Management, Monitoring, Policy and Law

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