Sixth Framework Programme Project no. Contract no Project acronym: DESALINATION Project title: Assessment of Desalination Mortars and Poultices for Historic Masonry Instrument Thematic Priority: 8.1.B The protection of cultural heritage DL 6.4 News letter 3 Due date of deliverable: 30/04/2007 Actual submission date: 30/04/2007 Start date of project: April 1, 2006Duration: April April IUAVRevision [draft 1] Project co-funded by the European Commission within the Sixth Framework Programme ( ) Dissemination Level PUPublicX PPRestricted to other programme participants (including the Commission Services) RERestricted to a group specified by the consortium (including the Commission Services) COConfidential, only for members of the consortium (including the Commission Services)

SIXTH FRAMEWORK PROGRAMME Assessment of desalination mortars and poultices for historic masonry ( ) EC PROJECT DESALINATION NEWSLETTER 3/2008 Contract No Scientific co-ordinator: Fulvio Zezza University IUAV of Venice

DESALINATION Project -gaining a better understanding of the salt transport mechanism between a salt laden substrate and a material applied on top of that -assessment of the possibilities and limitations of desalination treatments method to assess the performance of desalination systems Methodology (non destructive techniques- NDT) Laboratory tests (poultices and substrates) scientific knowledge on how desalination works recommendation for a standard to test desalination systems decision-guideline on how to choose a desalination mortar/poultice

WP3 – Case studies Terese Convent assessment of desalination treatment before and after treatment application by NDT measurements

NDT-Research Methodology diagnosis control treatment ABC characterization of supports I.kind of material (brick, stone) II.assessment of state of conservation III.colour IV.temperature V.ultrasonic pulses VI.resistivity I.application methodology II.sampling criteria III.product analysis assessment of treatment (compared analyses) I.soluble salt content II.efficiency of salt extraction (surface changes, colour, temperature, ultrasonic pulses, resistivity) treatment application

WP4 – Performance of desalination systems Tests performed in laboratory: characterization of poultices in contact with substrate of diverse porosity tests on workability and drying behaviour of poultices applied on 2 substrates study of water flow from the poultice to the substrate fractional factorial experiments to assess poultice effectiveness on salt contaminated substrates (test on effectiveness) investigation of the effect of the clay/sand ratio and of the grain size of the sand on the total porosity and pore size distribution of the poultice started

Waag building Amsterdam The Netherlands  evaluation of desalination effectiveness of different poultices applied on building materials on site WP3 – Case studies Italy-Venice San Geremia Church Augustusburg Palace Germany-Bruhl France Dijon St. Philibert Church

WP5 - NMR research diffusion plays a minor role in the first stage of drying process a poultice should be selected on basis of the pore sizes of both poultice and substrate the poultice applied on the brick with smallest pores (1:3) transported salt quicker than with other poultices the large pore of substrate can be blocked by kaolin from poultice

WP6 – Knowledge transfer MDDS philosophy: assessment building description of decay diagnosis: assessment damage mechanism well defined intervention The project website ( has been implemented: a feedbacks groups of end users has been contacted and involved in a short questionnaire about Desalination Project and desalination treatment more information about NMR techniques, MDDS systems and simple desalination techniques to evaluate desalination efficiency and a request of information about how to proceed with badly decayed substrates have been received link to TUE-NMR and MDDS presentation will be provided implementation in MDDS

WP3 3.3 Procedure of test panel (M33) 3.4 Comparison desalination result between lab test and test panel (M33) WP4 4.3 Report on the results on the evaluation of the performance of different desalination systems M Scheme which indicates what desalination system may be used successfully on substrates with specific pore-size distribution M32 WP5 5.5 Numerical indication of the amount of salt to be extracted by a mortar or mortar/poultice (M33) WP6 6.7 Workshop in Germany (M33) NEXT DEADLINES