The investigation of capillary water rise mechanisms in old masonries is of great practical interest, as well as the investigation of the electrical effects accompanying such phenomenon. In fact, moisture presence facilitates all the decay processes in porous building materials and strongly threatens the preservation ofmaterials in architectural heritage. Previous papers have shown that performing a correct and accurate measurement of spontaneous electric potential in masonries is very challenging due to several variables influencing these phenomena, such as materials microstructure, soluble salts nature and amount. In thispaper, the influence of mortar joints on the capillary water rise and on the related electrokinetic effects was investigated on laboratory assemblies; then, the same measuring procedure was applied on site toa real XVI Cent. masonry building affected by rising damp.
E. Franzoni, S. Bandini, G. Graziani (2014). Rising moisture, salts and electrokinetic effects in ancient masonries: From laboratory testing to on-site monitoring. JOURNAL OF CULTURAL HERITAGE, 15(2), 112-120 [10.1016/j.culher.2013.03.003].
Rising moisture, salts and electrokinetic effects in ancient masonries: From laboratory testing to on-site monitoring
FRANZONI, ELISA;BANDINI, SIMONE;GRAZIANI, GABRIELA
2014
Abstract
The investigation of capillary water rise mechanisms in old masonries is of great practical interest, as well as the investigation of the electrical effects accompanying such phenomenon. In fact, moisture presence facilitates all the decay processes in porous building materials and strongly threatens the preservation ofmaterials in architectural heritage. Previous papers have shown that performing a correct and accurate measurement of spontaneous electric potential in masonries is very challenging due to several variables influencing these phenomena, such as materials microstructure, soluble salts nature and amount. In thispaper, the influence of mortar joints on the capillary water rise and on the related electrokinetic effects was investigated on laboratory assemblies; then, the same measuring procedure was applied on site toa real XVI Cent. masonry building affected by rising damp.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.