Watt, D and Colston, B (2000) Investigating the effects of humidity and salt crystallisation on medieval masonry. Building and Environment, 35 (8). pp. 737-749. ISSN 03601323

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Abstract

An investigation of the effects of humidity and salt crystallisation on medieval masonry has been undertaken at the parish church of Walpole St Andrew, Norfolk, with the intention of establishing a relationship between changes in environmental conditions and levels of stone decay. Masonry within the church has been contaminated with sodium chloride salts, which are undergoing cycles of crystallisation/dissolution in response to fluctuations in relative humidity corresponding to the equilibrium relative humidity of the salt. The effects of these cycles have been determined by a combination of gravimetric analysis, ion chromatography, and qualitative assessment of deposited material. Appropriate remedial action, based on a combination of desalination techniques and environmental control, is put forward for discussion.

Item Type:	Article
Uncontrolled Keywords:	Church; Masonry; Environmental monitoring; Salt analysis; Salt crystallisation; Stone decay
Subjects:	?? Salt ?? ?? case ?? English > Damage functions > Salt damage ?? monitor ??
Depositing User:	Anna Samuelsson
Date Deposited:	17 Mar 2008 10:20
Last Modified:	04 Apr 2017 12:53
URI:	http://eprints.sparaochbevara.se/id/eprint/92

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