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Mortar
Optimization Project Undertaken, Eyeing
Restoration in Persepolis
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13
July 2003
Researchers in the Parse-Pasargad
foundation have embarked on a program to come up with a
new kind of cement mortar composite to be used in
restoration of the monuments in Persepolis.
The project aims to optimize cement mortar used by the
restoration experts. Most restoration works in
Persepolis are conducted using cement mortar and yet no
study has so far been undertaken with regard to
optimization of the material, said the project manager.
Nahid Harati noted some restoration works using cement
mortar may damage the historical monument.
"Cement composites are similar to the type of
stones used in the Persepolis monuments. However,
regional weather conditions and different rates of
expansion and contraction mean that the stone and the
mortar do not stick together well," Harati added.
She touched on dislocation of stone slabs and their
falling off from the monuments, cracks in the monuments,
generation of salt and flaking of stones as major
implications of applying cement mortar in the Persepolis
restoration works.
The mortar has always been used in the restoration works
in Persepolis, most notably from 1939 to 1977, in
restoring the floor of the entrance stairs, the eagle
capital and stones which had fallen off various parts of
the site.
The preliminary stage of the project including studying
previous restoration works in Persepolis has been
completed.
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"History is the Light on the Path to Future"
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Encyclopaedia Iranica
The British Institute of
Persian Studies
"Persepolis Reconstructed"
The British Museum
The Royal
Asiatic Society
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