Structural Assessment of Stone Walls of St. Servatius Church in Quedlinburg

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 inter- vention. 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 in- vestigations were carried out with radar and ultrasonics. The results were combined with plans, views and cores recorded in advance.