000002965 001__ 2965
000002965 005__ 20141118153413.0
000002965 04107 $$acze
000002965 046__ $$k2010-09-22
000002965 100__ $$aMaguregui, M.
000002965 24500 $$aAnalytical diagnosis protocol to assess the impacts of environmental stressors on historical mortars acting as the support of wall paintings

000002965 24630 $$n2.$$pHistoric Mortars and RILEM TC 203-RHM Final Workshop
000002965 260__ $$bRILEM Publications s.a.r.l., 157 rue des Blains F-92220 Bagneux - France
000002965 506__ $$arestricted
000002965 520__ $$2eng$$aThis work describes a new analytical diagnosis protocol to assess the environmental impacts on historical mortars acting as supports of wall paintings. The adequate assessment of such impacts requires not only the identification of the original and decaying products but also clarify the mechanisms (chemical reactions between original materials and environmental stressors) that promote the decaying. The proposed protocol is divided in four steps: (1) Analytical (both elemental and molecular) characterization by means of portable non-destructive spectroscopic and micro-destructive analytical techniques to identify the original and decaying compounds of the mortars, (2) Chemometric analysis on quantitative data of soluble salts, (3) Chemical simulations (MEDUSA, RUNSALT…) to explain the reactions between mortar components and environmental stressors and (4) Validation of the decaying reaction taking into account the agreement between the spectroscopic information and the chemometric calculation + chemical simulation results. The possibilities offered by this diagnosis protocol are described on two case studies: (a) mortars from medieval wall painting affected by ammonium nitrate rich infiltration waters and (b) Pompeian mortars of wall paintings exposed outdoors from the last 150 years after its excavations.

000002965 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002965 653__ $$a

000002965 7112_ $$a2nd Conference and of the Final Workshop of RILEM TC 203-RHM$$cPrague (CZ)$$d2010-09-22 / 2010-09-24$$gHMC2010
000002965 720__ $$aMaguregui, M.$$iMadariaga, J.M.$$iMartinez-Arkarazo, I.$$iCastro, K.$$iKnuutinen, U.
000002965 8560_ $$ffischerc@itam.cas.cz
000002965 8564_ $$s340014$$uhttps://invenio.itam.cas.cz/record/2965/files/page_0527.pdf$$y
             Original version of the author's contribution as presented on CD, , page 527.
            
000002965 962__ $$r2907
000002965 980__ $$aPAPER