Ground Penetrating Radar (GPR): an application for evaluating the state of maintenance of the building coating
Main Article Content
Abstract
Ground Penetrating Radar (GPR) is a non-destructive methodology. For the localisation of buried structures, it
uses short time duration electromagnetic (EM) pulses lasting from about 1 ns to about 30 ns. Therefore, GPR is
characterised by a wide frequency band ranging from 10 MHz to some GHz, and is useful in the localisation of
EM discontinuities in the subsurface with high resolution. This paper describes an application of GPR to evaluate
the state of maintenance of some travertine panels attached to the inside walls of a building housing the Bank of
Naples in Campobasso and in danger of falling because of the numerous voids present between the wall and the
panels. The aim of the survey was to assess whether the GPR technique could be used to detect the voids behind
the travertine panels. The study was made to assist the design of the restoration works of the travertine covering.
Because of the very narrow thickness of both the travertine plates and the voids, special care was needed in the
acquisition and processing steps. The measurements were performed on two panels: one purposely put on to the
laboratory wall with a known position of the voids; the other one selected from among the panels to be restored.
Although pushed to the limit of the resolution achievable by the available antenna, the study has given quite good
results.
uses short time duration electromagnetic (EM) pulses lasting from about 1 ns to about 30 ns. Therefore, GPR is
characterised by a wide frequency band ranging from 10 MHz to some GHz, and is useful in the localisation of
EM discontinuities in the subsurface with high resolution. This paper describes an application of GPR to evaluate
the state of maintenance of some travertine panels attached to the inside walls of a building housing the Bank of
Naples in Campobasso and in danger of falling because of the numerous voids present between the wall and the
panels. The aim of the survey was to assess whether the GPR technique could be used to detect the voids behind
the travertine panels. The study was made to assist the design of the restoration works of the travertine covering.
Because of the very narrow thickness of both the travertine plates and the voids, special care was needed in the
acquisition and processing steps. The measurements were performed on two panels: one purposely put on to the
laboratory wall with a known position of the voids; the other one selected from among the panels to be restored.
Although pushed to the limit of the resolution achievable by the available antenna, the study has given quite good
results.
Article Details
How to Cite
Leucci, G., Negri, S. and Carrozzo, M. T. (2003) “Ground Penetrating Radar (GPR): an application for evaluating the state of maintenance of the building coating”, Annals of Geophysics, 46(3). doi: 10.4401/ag-3421.
Issue
Section
OLD
Open-Access License
No Permission Required
Istituto Nazionale di Geofisica e Vulcanologia applies the Creative Commons Attribution License (CCAL) to all works we publish.
Under the CCAL, authors retain ownership of the copyright for their article, but authors allow anyone to download, reuse, reprint, modify, distribute, so long as the original authors and source are cited. No permission is required from the authors or the publishers.
In most cases, appropriate attribution can be provided by simply citing the original article.
If the item you plan to reuse is not part of a published article (e.g., a featured issue image), then please indicate the originator of the work, and the volume, issue, and date of the journal in which the item appeared. For any reuse or redistribution of a work, you must also make clear the license terms under which the work was published.
This broad license was developed to facilitate open access to, and free use of, original works of all types. Applying this standard license to your own work will ensure your right to make your work freely and openly available. For queries about the license, please contact ann.geophys@ingv.it.