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Proceedings Paper

Nondestructive measurement systems for the characterization of ancient masonry: an SLDV/GPR integrated approach
Author(s): Alexia Agnani; Antonio del Conte; Enrico Esposito; Berardo Naticchia
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Paper Abstract

The determination of the state of conservation of historical masonries by non-destructive and non-invasive techniques must still gain its due widespread use, and this is clearly reflected in national norms that often refuse them as not being reliable enough to be used without the support of destructive ones (see for example the Italian OPCM 3274/2003 and subsequent modifications). Anyhow, the clear advantages of such techniques, and especially laser based ones like the Scanning Laser Doppler Vibrometry - SLDV here employed, drive the research towards this direction. In this work we will illustrate a case study done in the south of the Marche region, namely the investigations conducted inside and outside the Lanciano castle, near Castelraimondo (MC). A series of SLDV measurements have been made that have lead to the discovery of many hidden structural defects, such as delaminations of superficial layers, minor and also important cracks. To validate our findings a well reputed and consolidated technique has been employed, a Ground Penetrating Radar - GPR, along with manual beating of suspected areas. Also a brief session using an infrared camera has been conducted to check the results relative to superficial delaminations, where the GPR could fail due to insufficient spatial resolution.

Paper Details

Date Published: 21 June 2006
PDF: 9 pages
Proc. SPIE 6345, Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 63450V (21 June 2006); doi: 10.1117/12.693093
Show Author Affiliations
Alexia Agnani, Univ. Politecnica delle Marche (Italy)
Antonio del Conte, Univ. Politecnica delle Marche (Italy)
Enrico Esposito, Univ. Politecnica delle Marche (Italy)
Berardo Naticchia, Univ. Politecnica delle Marche (Italy)

Published in SPIE Proceedings Vol. 6345:
Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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