Enhancing the durability of historic brick masonry: The role of diammonium phosphate and chitosan in reducing salt-induced damage

IF 3.5 2区 综合性期刊 0 ARCHAEOLOGY
Clelia Marrone, Elisa Franzoni
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引用次数: 0

Abstract

Salt crystallization represents a serious threat to historic architecture worldwide, causing structural and aesthetic damage due to the accumulation of salts in porous building materials, such as bricks. Historic masonry is particularly vulnerable to this type of damage due to the complex interactions between salts and its porous matrix. Salt crystallization modifiers have proven to be valid candidates in reducing the detrimental effects of salt crystallization within porous materials, thereby prolonging the lifespan of historic structures. In this research, chitosan was selected as crystallization inhibitor, considering his remarkable properties in terms of sustainability and cost-effectiveness. Applied to brick samples in combination with a phosphatic treatment based on diammonium phosphate, it resulted an encouraging new solution to reduce salt crystallization damage without affecting the material's properties and hence showing a good compatibility, although further research is needed to assess the effectiveness of the chitosan-based treatments for in-the-field applications.
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来源期刊
Journal of Cultural Heritage
Journal of Cultural Heritage 综合性期刊-材料科学:综合
CiteScore
6.80
自引率
9.70%
发文量
166
审稿时长
52 days
期刊介绍: The Journal of Cultural Heritage publishes original papers which comprise previously unpublished data and present innovative methods concerning all aspects of science and technology of cultural heritage as well as interpretation and theoretical issues related to preservation.
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