Towards a more effective and reliable salt crystallization test for porous building materials: state of the art

被引:0
|
作者
Barbara Lubelli
Veerle Cnudde
Teresa Diaz-Goncalves
Elisa Franzoni
Rob P. J. van Hees
Ioannis Ioannou
Beatriz Menendez
Cristiana Nunes
Heiner Siedel
Maria Stefanidou
Veronique Verges-Belmin
Heather Viles
机构
[1] Delft University of Technology,Faculty of Architecture
[2] Ghent University,Department of Geology
[3] Laboratorio Nacional de Engenharia Civil (LNEC),Department of Civil, Chemical, Environmental and Materials Engineering (DICAM)
[4] University of Bologna,Department of Civil and Environmental Engineering
[5] TNO,Department of GeoSciences and Environmental Sciences
[6] University of Cyprus,Institute of Geotechnical Engineering
[7] Université de Cergy-Pontoise,School of Civil Engineering
[8] Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences,School of Geography and the Environment
[9] Dresden University of Technology,undefined
[10] Aristotle University of Thessaloniki,undefined
[11] Laboratoire de Recherche des Monuments Historiques (LRMH),undefined
[12] University of Oxford,undefined
来源
Materials and Structures | 2018年 / 51卷
关键词
Literature review; Salt damage; Salt crystallization test; Porous materials; RILEM;
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中图分类号
学科分类号
摘要
The durability of building materials with respect to salt crystallization is commonly determined by accelerated weathering tests, carried out in the laboratory. An effective laboratory weathering test should assess the durability and, in the case of conservation of historic buildings, the compatibility of repair materials with those existing. Besides, the test should provide reliable results within a reasonable period of time, accelerating the deterioration process without however altering its mechanism. Despite several national and international standards, recommendations and guidelines, a commonly accepted testing protocol does not yet exist. Researchers often develop and apply their own procedure, a fact that complicates comparison between different studies. The RILEM Technical Committee 271 ASC has been set up with the scope of developing improved test procedures for the assessment of the behaviour of materials under the influence of salt crystallization, which should overcome the limitations of existing standards and recommendations. This paper constitutes one of the first results of the work of the Technical Committee. It critically reviews the literature on salt crystallization tests, identifies advantages and limitations of the several test protocols and provides new ideas for the development of improved salt crystallization procedures.
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