Hostname: page-component-77c89778f8-gq7q9 Total loading time: 0 Render date: 2024-07-20T19:01:05.686Z Has data issue: false hasContentIssue false
  • English
  • Français

Hygric Swelling of Portland Brownstone

Published online by Cambridge University Press:  21 March 2011

Inmaculada Jimenez Gonzalez ,
Megan Higgins  and
George W. Scherer
Inmaculada Jimenez Gonzalez
Affiliation:
Princeton University, Eng. Quad. E-319, Princeton, NJ 08544, USA
Megan Higgins
Affiliation:
Princeton University, Eng. Quad. E-319, Princeton, NJ 08544, USA
George W. Scherer
Affiliation:
Princeton University, Eng. Quad. E-319, Princeton, NJ 08544, USA
Get access

Abstract

Portland Brownstone (PB) is a widely used building material, particularly in New York City, that is susceptible to severe deterioration from weathering. This stone contains clays that may cause damage by dilating during wetting/drying cycles. We have measured the swelling strain of PB in aqueous solutions to determine the effect of ionic strength (of KCl and CaCl2) and water activity (in isopropanol solutions). We have also measured the stress exerted during swelling when the expansion is constrained. These data permit calculation of the stresses produced during wetting/drying cycles, which are found to be comparable to the tensile strength of the stone.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 712: Symposium II – Materials Issues in Art and Archaeology VI , 2002 , II2.4
Copyright
Copyright © Materials Research Society 2002

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1 Rodriguez-Navarro, C., Hansen, E. Sebastian, E. and Ginell, W.S. J. Am. Inst. Conservation 36 [2] (1997) 151–163 Google Scholar
2 Félix, C., “Peut-on consolider les grès tendres du Plateau suisse avec le silicate d'éthyle? (Can one consolidate the soft sandstones of the Swiss plateau with ethyl silicate?)”, pp. 267–274 in Preservation and restoration of cultural heritage, ed. Pancella, R. Proc. LCP Congress, Montreux, 1995 Google Scholar
3 Weiss, N. Teutonico, J. Matero, F. and Pepi, R. “Sandstone Restoration Project”, Landmarks Conservancy, New York, NY. 1980 Google Scholar
4 Scherer, G.W. Relaxation in Glasses and Composites (Wiley, NY, 1986) Ch. 8Google Scholar
5 Timoshenko, S. J. Opt. Soc. America 11 (1925) 233–255 Google Scholar
6 Scherer, G.W. Relaxation in Glasses and Composites (Wiley, NY, 1986) Ch. 16Google Scholar
7 Snethlage, R. and Wendler, E. “Surfactants and akherent silicon resins - New protective agents for natural stone, pp. 193–200 in Mat. Res. Soc. Symp. Proc. Vol. 185 (Mater. Res. Soc., Pittsburgh, PA, 1991)Google Scholar