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Laser induced active thermography for the visualization of transport processes in building materials
(2009)
Non-destructive and minor destructive testing methods enable a classification of historic structures, building processes, applied building technologies and materials. Therefore, these methods should be part of the global investigation of historic buildings which is usually required before the planning of any building intervention. The case study presented herein encompasses experimental work carried out at the St. Servatius Church in Quedlinburg, Germany. Within a comprehensive restoration campaign, non-destructive on-site investigations were carried out with radar and ultrasonics. The results were combined with plans, views and cores recorded in advance.