SIXTH FRAMEWORK PROGRAMME Assessment of desalination mortars and poultices for historic masonry (2006-2009) EC PROJECT DESALINATION NEWSLETTER 2/2007 Contract No. 022714 Scientific co-ordinator: Fulvio Zezza University IUAV of Venice
Dec 17, 2015
SIXTH FRAMEWORK PROGRAMME
Assessment of desalination mortars and poultices for historic masonry (2006-2009)
EC PROJECT DESALINATIONNEWSLETTER 2/2007
Contract No. 022714
Scientific co-ordinator: Fulvio Zezza University IUAV of Venice
WP 1: managementWP 2: interviews and selection of desalination system WP 3: case studies WP 4: performance of desalination systems WP 5: NMR research moisture and salt transport WP 6: knowledge transfer
Work Package (WP) list
The following meetings have been organized and the meeting minutes have been produced for each scheduled meeting
1st meeting
1st 6M meeting
1st WP4 meeting
1st Workshop Desalination
2nd 6M meeting
Venice, 9-10 May 2006, Italy
Dijon, 19-20 October 2006, France
Delft, 9 February 2007, The Netherlands
Venice, 21-22 May 2007, Italy
Venice, 22-23 May 2007, Italy
WP1 – Coordination
UNIVERSITY IUAV OF VENICE – FACULTY OF ARCHITECTURE Aula Gradoni – Santa Marta, Dorsoduro 2196
Venice May 21-22, 2007
WORKSHOP DESALINATION
The Workshop proposes an approach to the complex desalination question and penetrates into the scientific and technological objects of the EC Project Desalination to gain a better understanding of the salt transport mechanism between salt laden substrates and poultices. Possibilities and limitations of the desalination treatments are considered taking into account from one hand the environmental conditions and the salt origin, and, from the other, the products characterization, within a modular desalination system which considers different substrates as composition and properties.
The Workshop Desalination aims to extend the knowledge of the restorers on the practice for desalination: the materials properties, the environmental conditions, the kind of salt and the type of treatments to apply for desalination play a fundamental role in their decision.
The results of the online survey of Desalination Questionnaire, collated and assessed using statistical software (SPSS), give an insight into the current working practice and materials selection of conservators, contractors and architects
WP2 – Interviews/selection of mortars
Locationof respondents[survey Qu.1]
other 9.9%
Italy 3.3%
France36.3%
Great Britain2.2%
Germany40.7%
Missing 7.7 %
Location of respondents
Poultice type: regional preferences
other
Italy
France
GreatBritain
Germany
Missing
60
50
40
30
20
10
0
modified industrialproducts
industrial products
self made
Type of poultice products used
WP3 – Case studies
In situ investigations
Church of Zoutelande Waag building AmsterdamThe Netherlands
Italy-Venice
Terese Convent San Geremia Church
New OrleansUSA
Augustusburg Palace
Germany-Bruhl France-Dijon
St. Philibert Church
Practical demonstration performed in situ during the 1st Workshop (Venice). Three different kind of poultices with different grain size composition, specifically prepared by Remmers, have been applied on substrates previously detected by NDT techniques. The comparison of the results (pre – post treatment) by means of the methodological research foreseen in the Project will be the aim of the next in situ research work.
WP3 – Case studiesCase study: Terese Convent - Venice
Within the laboratory tests the characterization of poultices workability, shrinkage and composition has been completed for the four main types of poultices:
• cellulose based poultices• clay based poultices (mineral class)• poultices made off a mixture of cellulose and mineral compounds• ready to use poultices
WP4 – Performance of desalination systems
The first results of moisture transport for different kind of poultices (kaolin sand, cellulose poultice and Arbocel poultice) applied on different substrates, (a fired clay brick and a calcium silicate brick), have been presented
The selection of the salt mixture composition for lab test is ready
calcium silicate brickfired clay brickfine porouscoarse
Mixture compositionIon MolesNa 2NO3 1Cl 1
Mixture compositionIon MolesNa 1NO3 1K 1Cl 1
Salt transport and building materials WP5 - NMR research
NMR equipment
Grey calcium silicate stone
White calcium silicate stone
Red brick Yellow marl limestone
WP6 – Knowledge transferimplementation in MDDS Project website:
salt diffusion on porous building materials
TNO organized a miniworkshop for the partners in the project on the use of MDDS (Monument Damage Diagnostic System), which took part in Feb. 2007
The project website was developed (www.bk.tudelft.nl/desalination). Activities around this deliverable have been performed by TNO and subcontractor SNA.
WP33.1.2 Common procedure for assessment of treatments M183.2 Description of case studies M24
WP44.3 Report on the results on the evaluation of the performance of different desalination systems M324.4 Scheme which indicates what desalination system may be used successfully on substrates with specific pore-size distribution M32
WP55.3 Insert for air flow and relative humidity control during NMR scanning M215.4 Input data for model on moisture and ion transport during drying for mortar/mortar/poultice and substrate combination M22
WP66.4 News letters 3 M25
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