-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
1/47
!"!"!"!"
Luigi DeiLuigi Dei
Department of Chemistry & CSGI Consortium
University of Florencevia della Lastruccia, 3 I-50019 Sesto Fiorentino - Firenze - Italy
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
2/47
Le restaurateur doit rmedier dans la mesure dupossible au divorce fatal que le temps - et plussouvent les hommes - ont provoqu entre lamatire vieillisante et la forme quelle incarne
Paul Philippot
Restorers should make up everything possiblefor the fatal divorce that the time - and more often
the men - have brought on between the agingmatter and the form it embodies
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
3/47
Best consolidating agent
according to the golden rule
Slaked lime (grassello),
that is Ca(OH)2plus water paste
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
4/47
! !
" !# #
$ # !
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
5/47
Research strategy
!!!! ####
%%%% !!!!!!!!
$$$$ ####
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
6/47
Topics
!!!!""""####
$%$%$%$% &&&& & & & &
&&&&
$'$'$'$'
&&&& %%%%
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
7/47
Physicochemical characterisation of the dispersions
&$&$&$&$
#### '''' ####
(((((((( $$$$ #### #$#$#$#$
)))) !!!!!!!! ****!!!!!!!! &&&&
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
8/47
+ ,!!,!!,!!,!!---- !!!!
#$#$#$#$ $$$$$$$$ $ $ $ $
$$$$$$$$ !!!!
+ ,!,!,!,! $$-%$$-%$$-%$$-% ....%%%%
/!/!/!/!%%%% 0!!0!!0!!0!!%%%% 1111%%%%0000%%%%
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
9/47
(((($$$$))))****++++
,&,&,&,& ----
--------"""" ....!!!!////
++++%%%%&&&&
#0#0#0#0 !"!"!"!"
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
10/47
Time (hours)
0 2 4 6 8 10 12 14 16 18
-parameter
0
20
40
60
80
100
120
slaked lime/water
powder/1-propanolslaked lime/1-propanol
= {1 - [(At=0
- At)/A
t=0}x100
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
11/47
water
ethanol
1-propanol
2-propanol
1-butanol
2-butanol
1-octanol
-parameter
020
40
60
80
100
Ca(OH)2Powder
Ca(OH)2Slakedlim
e
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
12/47
Evaluation of the consolidating power
)$!$)$!$)$!$)$!$
2(32(3($$2(32(3($$2(32(3($$2(32(3($$ $$$$######## ####
$4$4$4$4
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
13/47
**** 12%2%12%2%12%2%12%2%
++++ -,///-,///-,///-,///
(((( /,.///,.///,.///,.//
/,!!!/,!!!/,!!!/,!!!
3333 /,///,///,///,//
$$$$ /,-./,-./,-./,-.
4444 /,-///,-///,-///,-//
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
14/47
+ !!!! !#!#!#!#+ '!!$'!!$'!!$'!!$
+ **** !!!!
+ 55556##$6##$6##$6##$
+ ,,,,77778888$$$$
+ 6 # 6 # 6 # 6 # $$$$$$$$
+ !**!**!**!**
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
15/47
Resistance to surface abrasion by microdurometer
9$# $
,$" #:((
! $ :($$ -4$4$4$4$ ####
!$#!$#!$#!$#
!!!! #### ''''
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
16/47
! !
Scotch Tape Test parameter in mg.cm-2 is
the average mass of surface specimen
taken away by a strip of scotch tapenormalized to the area (method
developed by Prof. Giorgio Torraca,
Rome, Italy)
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
17/47
"!#
!!!!""""
----/,.&2-///,.&2-///,.&2-///,.&2-//
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
18/47
$
( ( ( ( &&&& 5 5 5 5
++++
5555
6&6&6&6& !/!/!/!/ &&&&
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
19/47
% !!
$$$$
$$$$$$$$ $!$#$!$#$!$#$!$#
$#$#$#$#
$:($:($:($:( ####
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
20/47
[Time(s)]1/2
0 2 4 6 8
Weig
htchange(%)
0
4
8
12
16
Lime/sand 0.125 not treated
Lime/sand 0.125 treated
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
21/47
Time (hours)
0 50 100 150 200 250
W
eightchange(%)
-6
-5
-4
-3
-2
-1
0
Lime/sand 0.125 not treated
Lime/sand 0.125 treated
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
22/47
++++ *))*))*))*)) %%%% 2222 %%%% 2-2-2-2-
Lime/sand volume ratio CA/g.cm-2.s-1/2 /m-1 loss of material by STT/mg.cm-2
0.500 0.056 1,111 0
0.333 0.048 625 0
0.125 0.064 312 5.19
0.125 treated 0.035 556 1.37
0.100 0.072 227 7.12
0.100 treated 0.042 417 4.12
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
23/47
$7$89:$;)+)9;4)$$7$89:$;)+)9;4)$$7$89:$;)+)9;4)$$7$89:$;)+)9;4)$ 2-2-2-2-8+;18+;18+;18+;1
39*$8*9;*9;8$+1+*$*()9;6+11+9;)9;*39*$8*9;*9;8$+1+*$*()9;6+11+9;)9;*39*$8*9;*9;8$+1+*$*()9;6+11+9;)9;*39*$8*9;*9;8$+1+*$*()9;6+11+9;)9;*
+;3*);$*;*$8
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
24/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
25/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
26/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
27/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
28/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
29/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
30/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
31/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
32/47
Avnso Church, Copenhaghen
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
33/47
USA6.jpg
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
34/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
35/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
36/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
37/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
38/47
! '
$$$$$$$$%#%#%#%# '!'!'!'!#### %$%$%$%$ !!!! $$$$
#### #'#'#'#' !!!!
6$6$6$6$---- """"
$!$$$!$$$!$$$!$$ ####
####
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
39/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
40/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
41/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
42/47
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
43/47
New horizons for the research
6666 """" #### $$$$ $$$$#### ####
$$$$ ---- $!'!$!'!$!'!$!'!%%%%
$$""$$""$$""$$""%%%%$!$!$!$!0000
%%%% $!'$!'$!'$!' !#$!#$!#$!#$
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
44/47
$'$'$'$' ====;;;;>>>>
'''':*:&:*:&:*:&:*:&
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
45/47
$'$'$'$'====;>;>;>;>'''':*:*:*:*:&:&:&:&
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
46/47
Conclusions
.3!$.3!$.3!$.3!$ !'%!'%!'%!'% !$!$!$!$%%%%
%%%% ;;;;
-
8/7/2019 Dei, L. Lime-Alcohol Dispersion Wall Painting Conservation
47/47
$6
"7 $77 8+"777 +,'-
$$&'+
"7-7,+"77 $+,'-$,
,98
"7 $7 87 + "7 %7 :+ ,' -
$$*
; 7 %+ 7 + &7 )+ %7 8+ 87
,
!7%7 &+7 -
! + "+
;8+ $+- ,+$: