Rising moisture,salts and electrokinetic effects in ancient masonries: From laboratory testing to on-site monitoring |
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| Affiliation: | 1. Department of Civil and Building Engineering and Architecture, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy;2. Department of Industrial Engineering and Mathematical Sciences, Università Politecnica delle Marche, Ancona, Italy;1. Transport in Permeable Media, Department of Applied Physics, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands;2. INPT, UPS, IMFT (Institute de Mecanique des Fluides de Toulouse), University de Toulouse – Allee Camille Soula, F-31400 Toulouse, France;3. CNRS, IMFT, F-31400 Toulouse, France;1. Zhejiang University, Institute of Structural Engineering, Yuhangtang Road 866, Hangzhou, China;2. Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Via Mancinelli 7, Milan 20131, Italy;1. Dokuz Eylül University, Engineering Faculty, Geological Engineering Department, Tınaztepe Campus, Buca, Izmir, Turkey;2. Sid and Reva Dewberry Department of Civil, Environmental and Infrastructure Engineering, Volgenau School of Engineering Fairfax, VA, USA;1. Department of Civil Engineering, Brno University of Technology, Veveří 331/95, Brno 602 00, Czech Republic;2. Department of Civil Engineering, Technical University of Denmark in Lyngby, Anker Engelunds Vej 1, Denmark |
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| 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 of materials 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 this paper, 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 to a real XVI Cent. masonry building affected by rising damp. |
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| Keywords: | Porous building materials Rising damp Soluble salts Spontaneous potential Brick masonry Laboratory assemblies |
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