Deleting of rising damp in the archaeological site of Piazza Armerina through the application of the technology by neutralising electrical charge T.N.C.

The phenomenon of moisture by rising damp is among the major causes of deterioration of masonry and for it the technical literature sets out different types of consolidation among which the engineer evaluates the best approach to resolve the particular problem. The choice for each building comes from the analysis of the condition of the sites, the system building - environmental conditions and materials that compose the wall texture. The definition of the intervention is then strongly influenced by the historical and artistic value of the building on which you operate: in the event of buildings with historical and artistic value and decorated surfaces it would be unthinkable operate using conventional mechanical work, chemical or evaporative that are incompatibly invasive. In these conditions the scientific research is testing innovative approaches by application of the "Technology by neutralizing electrical charge " (T.N.C) that offers two benefits: it preserves precious surfaces and, unlike traditional methods, eliminates the phenomenon at the origin regardless of the variables related to the characteristics of materials. The T.N.C., in fact, acts only on the water introducing an electromagnetic field able to neutralize the electrical potential of the flow inside the masonry, eliminating the action of rising damp. The article analyzes the application case concerning the adoption of the T.N.C. in the archaeological site of Piazza Armerina in Enna, Sicily.