Controlling swelling of Portland Brownstone

Timothy Wangler, George Scherer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


Many clay-bearing sedimentary stones such as Portland Brownstone will swell when exposed to water, and this can generate damaging stresses as differential strains evolve during a wetting cycle. Current swelling inhibitors, consisting of α,ω-diaminoalkanes, can reduce swelling in Portland Brownstone up to 50%. In this study, through X-ray diffraction and swelling strain experiments, we demonstrate that the α,ω-diaminoalkanes inhibit swelling by substituting for interlayer cations and partially hydrophobicizing the interlayer, then rehydrating on subsequent wetting cycles. We also introduce the copper (II) ethylenediamine complex as a potential treatment for swelling inhibition.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium Proceedings - Materials Issues in Art and Archaeology VIII
Number of pages14
StatePublished - Dec 1 2008
EventMaterials Issues in Art and Archaeology VIII - Boston, MA, United States
Duration: Nov 26 2007Nov 28 2007

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


OtherMaterials Issues in Art and Archaeology VIII
CountryUnited States
CityBoston, MA

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Wangler, T., & Scherer, G. (2008). Controlling swelling of Portland Brownstone. In Materials Research Society Symposium Proceedings - Materials Issues in Art and Archaeology VIII (pp. 91-104). (Materials Research Society Symposium Proceedings; Vol. 1047).