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Title: Gypsum efflorescence on clay brick masonry: Field survey and literature study
Authors: Chwast, Jacek ×
Todorovic, Jelena
Janssen, Hans
Elsen, Jan #
Issue Date: 31-Mar-2015
Publisher: Elsevier BV
Series Title: Construction & Building Materials vol:85 pages:57-64
Abstract: Belgian masonry facades are being increasingly affected by unsightly persistent efflorescence. This results in disappointed customers and consequently creates a threat for the brick industry. Our paper presents a field survey and literature review on the topic. An investigation of Belgian cases reveals gypsum abundance in the deposit. The specific characteristics and literature review indicate masonry as the source and moisture transfer as the transport mechanism. However, there is currently no sound explanation for the crystallisation of gypsum on the surface and its only recent occurrence. One hypothesis points at mortar additives, which may affect the transport and crystallisation of gypsum.
ISSN: 0950-0618
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Geology
Building Physics Section
× corresponding author
# (joint) last author

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