Diagnosis of Historic Masonry Structures using Non Destructive Techniques

An accurate diagnosis of the state of conservation of historic structures is based on an extensive experimental investigation and on an appropriate structural analysis. A methodology of investigation to be applied to Cultural Heritage (C.H.) buildings is presented by the authors, based on a long experience in the fi eld. The investigation steps are described, from the collection of historical documents and the visual inspection to: the geometrical and crack pattern survey, the detailed masonry section and quality description through on site mechanical and physical tests and use of Non Destructive (ND) techniques to the material characterisation and the structural monitoring.