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New perspectives to save cultural heritage
Altan, M. Orhan

CIPA 2003 XIX th International Symposium, 30 September - 04 October, 2003, Antalya, Turkey
as pozzolanic matter, silica fume, fly ash, white cement, acrylic
and delicate balancing of their mixture ratios will help prevent
any possible damage.
111.1.2. The Determination of the Mixture Ratios and
As a result of the chemical and sieve analyses made on the
original mortar , mass ratios are calculated. Consequently, these
results help to determine the amount of the present material that
will be used in the mixture. Repair mortar samples should be
made for testing. The first attempt may not be successful,
therefore the results of multiple attempts are compared
accordingly. The physical and mechanical properties of the new
mortar that resembles the original one in color and structure are
found with the help of experiments and are compared with the
values of the original mortar. Lastly, the new mortar, whose
physical and mechanical properties are compatible with that of
the original one should be subject to a series of durability tests.
These tests will help us to determine whether the use of new
mortar is appropriate or not.
111.1.3. The Determination of Durability in Repair Mortars
Experiments of durability are made in order to measure the
resistance of the new mortar to the atmosphere conditions. In
determining the durability of the mortar the following
experiments should be made: wetting-drying, freezing-thawing
and aeging tests in the sodium sulphade decahydrade solution
(salty solution). These experiments will give us information
about the behaviour of the new repair mortar under unstable
atmosphere conditions. In other words it will be possible to
learn the new mortar’s duration of life through the above
mentioned tests. If there is minimum or no damage at all on the
new mortar as a result of these experiments, it is possible to
decide that the durability of the new mortar is high and hence,
its application is appropriate. The most important aspect of an
ideal repair mortar is its durability to freezing and thawing
cycles together with the durability against salt crystals dissolved
in water against hydradation and dehydradation cycles.
(Weaver, M., 1997).
Phase IV: Decision-Making
The repair mortar produced in light of all the analyses made
until the last phase is evaluated and whether it is an appropriate
mortar or not is decided in this phase. Finally, the mixture ratios
are prescribed for the application.
II.2.1.1. Sieve Analysis and
II.2.1.2..The Petrographical and
II.2.2.1. The Physical
II.2.2.2. The Mechanical
Chemical Analyses
Minerological Analyses
Property Analyses
Property Analyses
III. Evaluation
III. 1. Design of Repair Mortars
I 1 t
III. 1.1. The Determination of the Properties of
the Raw Materials
III. 1.2. The Determination of the Mixture
Ratios and Production
III. 1.3. The Determination of Durability in Repair Mortars
IV. Decision-Making
Repair Mortar Is Appopriate.
Repair Mortar Is Not Appopriate.
Figure 1. A flow diagram that shows a suggested experimental method used in the process of designing of repair mortars and