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Chemo-mechanics of salt damage in stone

Author

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  • Robert J. Flatt

    (Physical Chemistry of Building Materials, Institut für Baustoffe, ETH Zürich
    Sika Technology AG, Corporate Research)

  • Francesco Caruso

    (Physical Chemistry of Building Materials, Institut für Baustoffe, ETH Zürich)

  • Asel Maria Aguilar Sanchez

    (Physical Chemistry of Building Materials, Institut für Baustoffe, ETH Zürich)

  • George W. Scherer

    (E319 Engineering Quad, Princeton University)

Abstract

Many porous materials are damaged by pressure exerted by salt crystals growing in their pores. This is a serious issue in conservation science, geomorphology, geotechnical engineering and concrete materials science. In all cases, a central question is whether crystallization pressure will cause damage. Here we present an experiment in which the crystallization pressure and the pore saturation are varied in a controlled way. We demonstrate that a strain energy failure criterion can be used to predict when damage will occur. The experiment considered is the most widely used means to study the susceptibility to salt crystallization, so quantification of this test has far-reaching implications.

Suggested Citation

  • Robert J. Flatt & Francesco Caruso & Asel Maria Aguilar Sanchez & George W. Scherer, 2014. "Chemo-mechanics of salt damage in stone," Nature Communications, Nature, vol. 5(1), pages 1-5, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5823
    DOI: 10.1038/ncomms5823
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