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Welcome to SaltWiki

SaltWiki is intended to share current specialist information on salts, damages caused by salts and dealing with salt damage. You are welcome to contribute to this joint venture and to collaborate in compiling SaltWiki as an author. Information about the project you find here.

After completing the DFG project, the research group has founded the association SIK who has been committed to update the contents. The Hornemann Institute of the HAWK is responsible for the technical and graphical maintenance of the portal.


Conservation Measures


Salt Data

Deterioration Patterns

Literature and Software



CRYSPOM VII / 5-7 June 2021 in Pau (France)

The Biannual International workshop Crystallization in Porous Media CRYSPOM focuses on fundamental research of crystallization in porous materials. It unites researchers from geoengineering, geology, physics, chemistry, mechanics and conservation interested in crystal nucleation, growth and transport in porous media and its related consequences.

The idea is to bring together leading researchers and Ph.D. students to provide for a constructive and open dialogue. Also, it seeks to incite collaborations between theorists, modelists and experimentalists on an international level.

CRYSPOM results from a long-standing tradition. The workshop was founded by Prof. Noushine Shahidzadeh in 2008 in Paris, and subsequently took place in Brienz (Switzerland, 2010), Troia (Portugal, 2012), Amsterdam (The Netherlands, 2014), Toulouse (France, 2016) and Hamburg (Germany, 2018). The seventh in the series will be held in Pau (France), 7-9 June 2021.

Following recent COVID-19 events, the conference will be broadcast virtually. Depending on the situation of events, an option on site may be offered up to 1 month before the date of the event. We will then attend an hybrid event.

The topics includes, but are not limited to:

  • Fundamentals of crystallization in porous or confined media
  • Coupled problems including crystallization
  • Crystallization in the built environment
  • Crystallization and rock transformation in nature
  • Crystallization of salt and gas hydrates

Organizing committee: LFCR, H. Derluyn, D. Broseta, N. Beaudoin, G. Hoareau, M.-L. Rius & M. Durrieu.

To find more details about the workshop, please visit our website at https://cryspom7.sciencesconf.org/


  • Abstract submission: 1st March 2021
  • Abstract acceptance: 15th March 2021
  • Registration: 15th April 2021
  • Conference: 7th - 9th June 2021

SWBSS2021 in Delft

SWBSS 2021 is the 5th edition of the conference series “Salt Weathering of Buildings and Stone Sculptures”, started in 2008. Previous editions were held in Copenhagen (2008), Limassol (2011), Brussel (2014) and Potsdam (2017).

SWBSS2021 will be held at the Delft University of Technology (Delft, The Netherlands) on 22 - 24 September 2021.

The conference aims to bring together conservators, restorers, engineers, architects, academics, students and experienced researchers and to contribute thereby to the promotion of research and development within the field of salt weathering of porous materials.

The main topics of the conference are the following:

  • Environmental aspects related to salt sources
  • Transport phenomena and salt crystallisation
  • Measurement techniques
  • Desalination techniques
  • Conservation issues
  • Case studies

More information on the conference website


Yunxia Shen, Kirsten Linnow and Michael Steiger (2020): Crystallization Behavior and Damage Potential of Na2SO4–NaCl Mixtures in Porous Building Materials: Cryst. Growth Des. 2020, 20, 9, 5974–5985, https://doi.org/10.1021/acs.cgd.0c00671

Leyla-Cann Sögütoglu, Michael Steiger, Jelle Houben, Daan Biemans, Hartmut R. Fischer, Pim Donkers, Henk Huinink, and Olaf C. G. Adan(2019): Understanding the Hydration Process of Salts: The Impact of a Nucleation Barrier, Cryst. Growth Des., Article ASAP, DOI: 10.1021/acs.cgd.8b01908, Publication Date (Web): February 14, 2019, https://pubs.acs.org/doi/10.1021/acs.cgd.8b01908

Vazquez, P.; Thomachot-Schneider, C.; Mouhoubi, K.; Bodnar, J-L.; Avdelidis, N. P.; Charles, D.; Benavente, D. Sodium sulfate crystallisation monitoring using IR Thermography (2018): Infrared Physics & Technology Volume 89, March 2018, Pages 231-241, https://doi.org/10.1016/j.infrared.2018.01.011, http://dspace.lib.cranfield.ac.uk/handle/1826/12944

Sousa, Luis; Siegesmund, Siegfriedand Wedekind, Wanja (2018): Salt weathering in granitoids: an overview on the controlling factors. Environmental Earth Sciences, 77 (13), 502, https://doi.org/10.1007/s12665-018-7669-y

Lubelli, Barbara and Cnudde, Veerle and Diaz-Goncalves, Teresa and Franzoni, Elisa and van Hees, Rob P. J. and Ioannou, Ioannis and Menendez, Beatriz and Nunes, Cristiana and Siedel, Heiner and Stefanidou, Maria and Verges-Belmin, Veronique and Viles, Heather (2018): Towards a more effective and reliable salt crystallization test for porous building materials: state of the art. Materials and Structures, 51 (2), 55, https://doi.org/10.1617/s11527-018-1180-5

Yazan Abu Alhassan: The use of sodium ferrocyanide for the removal of salt from stone, exemplified for sandstones from Petra - Jordan,Dissertation, RWTH Aachen University, 2018

Proceedings of SWBSS 2017: Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures. University of Applied Sciences, Potsdam, Germany, 20-22 September 2017, edited by Steffen Laue

J. Flatt, Nevin Aly Mohameda,b, Francesco Carusoc, Hannelore Derluynd, Julie Desarnaude, Barbara Lubellif, Rosa Maria Espinosa‐Marzalg, Leo Pelh, Carlos Rodriguez‐Navarroi, George W. Schererj, Noushine Shahidzadehk, Michael Steiger: Predicting salt damage in practice: a theoretical insight into laboratory tests. In: RILEM Technical Letters (2017) 2: 108‐118,DOI: https://doi.org/10.21809/rilemtechlett.2017.41

Roland Lenz:Systemoptimierte Salzminderungskompressen (Material-Wirkung), in: Retrospektive und Perspektive, Methoden und Techniken in der Wandmalereirestaurierung, Werkstattgespräch des Bayerischen Landesamtes für Denkmalpflege im Literaturhaus München, 9. und 10. Mai 2106, Volk Verlag München 2017, S. 123-133.

Steffen Laue (ed.): Proceedings of SWBSS 2017. Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures, University of Applied Sciences Potsdam, Germany, 20-22 September 2017, Verlag der Fachhochschule Potsdam, http://dx.doi.org/10.5165/HAWK-HHG/315


If you are interested in writing an article or making an English version of an article already published in the German SalzWiki please contact us. Especially native speakers are invited to join the SaltWiki-Team.