Effect of swelling inhibitors on the swelling and stress relaxation of clay bearing stones

Inmaculada Jimenez Gonzalez, George Scherer

Research output: Contribution to journalArticle

50 Scopus citations

Abstract

Clay-containing stones such as Portland Brownstone (USA), Villarlod Molasse (Switzerland) and Tarifa Sandstone (Spain), are expected to weather as a result of wetting and drying cycles. During drying events, contraction of the drying surface leads to stresses approaching the tensile strength of the stone. However, we have found that the magnitude of these stresses is reduced by the ability of the stone to undergo stress relaxation. In this paper we describe novel methods to determine the magnitude of the stresses and the rate at which they develop and relax. We also discuss the influence of swelling inhibitors on the magnitude of swelling and the rate of the stress relaxation of these stones. The implications of our findings for the understanding of damage due to swelling of clays are discussed.

Original languageEnglish (US)
Pages (from-to)364-377
Number of pages14
JournalEnvironmental Geology
Volume46
Issue number3-4
DOIs
StatePublished - Aug 1 2004

All Science Journal Classification (ASJC) codes

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

Keywords

  • Clays
  • Free swelling
  • Stress relaxation
  • Surfactants
  • Wetting/drying

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