File:2017 Flatt laboratorytests.pdf

From Repository
2017_Flatt_laboratorytests.pdf(file size: 649 KB, MIME type: application/pdf)
Beschreibung Predicting salt damage in practice: a theoretical insight into laboratory tests
Quelle RILEM Technical Letters (2017) 2, S. 108-118 (ISSN 2518-0231)
Datum 2017
Autor Robert J. Flatt, Robert J.; Aly Mohamed,Nevin; Caruso, Francesco; Derluyn, Hannelore; Desarnaud, Julie; Lubelli, Barbara; Espinosa-Marzal, Rosa Maria; Pel, Leo; Rodriguez-Navarro, Carlos; Scherer, George W.; Shahidzadeh, Noushine; Seiger, Michael
Erlaubnis -
Bemerkungen fulltext
BibTex Flatt.etal:2017


Salt crystallization represents one of the major causes for the degradation of building and ornamental stone. As such, it has attracted the attention of researchers, who over the years have progressively unraveled most mechanisms involved in salt damage. Despite this mechanistic understanding, many questions subsist about how to quantitatively predict damage or its progression, and in particular how to relate performance on site to that in laboratory tests. In this context, a new RILEM TC 271‐ASC has been started with the objective of defining laboratory tests that deliver more reliable predictions of field behavior. One deliverable of this TC is to provide a theoretical insight into this question based on recent progress on the understanding of salt damage. This paper presents a summary of this work, highlighting key aspects relating to crystallization pressure, chemo‐mechanics and mass transport. Implications are discussed in relation to the most used accelerated salt crystallization tests in an attempt to better define which field exposure conditions that these tests best represent and may be used for, or define effective test procedures representing specific field conditions. A simple conceptual model for the development of salt damage is introduced. During an initial “induction” phase, transport of ions and accumulation of salt in the porous materials occurs without causing detectable damage until a critical point, termed “damage onset” is reached. Beyond this point, during the “propagation phase”, the material degrades, typically losing strength and cohesiveness. The implications of these two phases are discussed in relation to the selection of appropriate salt weathering tests and conservation interventions


Creative-Commons-Licence: CC_BY-4.0[edit]

Name This image, Text or file is licensed under the Creative-Commons-License Attribution in the version 4.0 International.

You are free:

  • to Share — copy and redistribute the material in any medium or format
  • to Adapt — remix, transform, and build upon the material

for any purpose, even commercially

Under the following conditions:

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Notice — You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation. No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

A digital object identifier (DOI) is a character string used to uniquely identify an electronic document.

File history

Click on a date/time to view the file as it appeared at that time.

current16:49, 21 January 2018 (649 KB)Hschwarz (talk | contribs)Salt crystallization represents one of the major causes for the degradation of building and ornamental stone. As such, it has attracted the attention of  researchers, who over the years have progressively unraveled most...
  • You cannot overwrite this file.

There are no pages that link to this file.