000002235 001__ 2235
000002235 005__ 20141118153437.0
000002235 04107 $$acze
000002235 046__ $$k2013-09-11
000002235 100__ $$aBrito, V.
000002235 24500 $$aArtisanal lime coatings and their influence on moisture transport during drying

000002235 24630 $$n3.$$pProceedings of the 3rd Historic Mortars Conference HMC13
000002235 260__ $$bGlasgow : University of the West of Scotland, 2013
000002235 506__ $$arestricted
000002235 520__ $$2eng$$aLime coatings were originally used in historical buildings all across Europe and the rest of the globe, on lime plasters or directly on stone elements. Today, these coatings are increasingly used in conservation due to their unique aesthetic features but also for functional reasons. One of their main functional advantages is the ability to not hamper the drying of the substrate, which is very important because dampness is recurrent in historical buildings. The work presented here is aimed at improving the understanding of how and why lime coatings affect (or not) the drying of the porous building materials that usually constitute those substrates. For that, we have analysed experimentally the influence of one selected lime coating on the drying of five materials with architectural relevance: one lime mortar and four stones, among which the well-known Ançã limestone, Maastricht limestone and Bentheimer sandstone. The materials were characterized in relation to their capillary porosity and pore size distribution, and their drying kinetics when coated or uncoated was evaluated. The results showed that the lime coating not only does not hinder drying, but can even accelerate it. At high moisture contents, the drying rate can be increased up to around 50%. This is likely to happen because, due to the complexity of its pore structure, the coating generates a larger effective surface of evaporation. In this article we discuss the possible causes and implications of this phenomenon.

000002235 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002235 653__ $$aKeywords lime coatings, porous materials, drying, moisture transport, historical buildings

000002235 7112_ $$a3rd Historic Mortars Conference$$cGlasgow, Scotland (UK)$$d2013-09-11 / 2013-09-14$$gHMC13
000002235 720__ $$aBrito, V.$$iDiaz-Gonçalves, T.
000002235 8560_ $$ffischerc@itam.cas.cz
000002235 8564_ $$s285253$$uhttp://invenio.itam.cas.cz/record/2235/files/Brito - Artisanal lime coatings and their influence on moisture transport during drying.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000002235 962__ $$r2223
000002235 980__ $$aPAPER