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Sawdy, A and Heritage, A (2007) Evaluating the influence of mixture composition on the kinetics of salt damage in wall paintings using time lapse video imaging with direct data annotation. Environmental Geology, 52 (2). pp. 303-315. ISSN 09430105

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This paper presents an examination of the timescale of phase transition behaviour of a series of salts known to cause damage to wall paintings and other cultural property. The rate of deliquescence and crystallisation of single salts (nitromagnesite and halite) under different RH regimes, and the extent to which this was affected when mixed with other salts (niter, nitratite and gypsum), was investigated. The study was conducted using simple conventional techniques (mass measurements over time) and also using an innovative new method: timelapse video imaging with online data annotation. The results demonstrate the synergy gained from combining video imaging with environmental data in reference to time in the study of salt phase changes: where it revealed new information concerning the kinetics of deliquescence and crystallisation. The implications of these results for the implementation of environmental control measures within historic buildings are discussed.

Item Type: Article
Uncontrolled Keywords: Salt damage; Wall paintings; Monitoring; Timelapse video imaging; Climate control
Subjects: ?? Salt ??
English > Damage functions > Salt damage
?? monitor ??
Depositing User: Anna Samuelsson
Date Deposited: 10 Jun 2008 08:32
Last Modified: 04 Apr 2017 12:58

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