TDR-based Water Content Estimation on Globigerina Limestone Through Permittivity Measurements

Andrea Cataldo, Egidio De Benedetto, Giuseppe Cannazza, Sebastiano D'Amico, Lourdes Farrugia, Geraldine Misfud, Evan Dimech, Charles V. Sammut, Raffaele Persico, Giovanni Leucci, Lara De Giorgi
Abstract:
Most monuments and historical buildings in the Maltese Islands are made of the local Globigerina Limestone (GL). This type of stone, however, is very delicate and prone to degradation caused by the environmental conditions of the islands. Hence, for the preservation of the Cultural Heritage monuments, it is necessary to promptly assess the health status of these structures and, in particular, their water content (which represents one of the major causes of degradation). Starting from these considerations, in this work, a time domain reflectometry (TDR)-based method for estimating water content of GL is presented. More specifically, the proposed method relies on estimating the water content value of the GL structure from TDRbased dielectric permittivity measurements. To verify the suitability of this system, experimental tests were carried out on a GL sample. The results anticipate the strong potential of the proposed method for practical applications in the Cultural Heritage diagnostics.
Download:
IMEKO-TC4-ARCHAEO-2017-105.pdf
DOI:
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Event details
IMEKO TC:
TC4
Event name:
TC4 MetroArchaeo 2017
Title:

IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage

Place:
Lecce, ITALY
Time:
23 October 2017 - 25 October 2017