DOI Heft:
Egypt
DOI Artikel:Gazda, Rajmund Witold: Conservation work and studies
DOI Seite / Zitierlink: https://doi.org/10.11588/diglit.41274#0170
DEIR EL-BAHARI
EGYPT
2. A marl stone which is friable, heavily
cracked, with a tendency to form clods.
Composed of algae and micritic binder
with loamy additions. The pores are
irregular in shape. Numerous cracks
are present running in different direc-
tions independently of the structural
directions. Part of the cracks are filled
with gypsum and anhydrite.
The laboratory research also indicated
that there is no link between external fac-
tors and limestone texture. The reason for
the damages are entirely physical: thermal
changes caused by insolation. The dam-
ages run parallel to dressing surfaces. On
the exposed blocks a spherical erosion
phenomenon is observed. The structural
features of the stone, laminae and the
cloddish structure, are not revealed. This
conclusion concerns both groups of lime-
stone.
Further research (by R. Kozlowski in
1998) concentrated on the swelling of the
loamy compounds present in both kinds of
limestone. A correlation was observed
between the loam content, the swelling/
Fig. 1. An example of exfoliation. Block without polychromy from the northern wall of the Upper
Courtyard (Photo R. Gazda)
The author is preparing a study of the causes of damages and the most suitable methods for the conservation of dec-
orated stone blocks and their display in the walls of the temple. For the findings of laboratory research on samples taken
by the author in 1992-1998, see the typescript reports: M. Kgsy-Lewandowska, S. Krazewski, G. Jaworski, Badania probek
ze swi^tyni Hatszepsut w Deir el-Bahari (UMK, Torun 1992); J. Magiera, Analiza petrograficzna probek materialu ka-
miennego ze swi%tyni krolowej Hatszepsut w Deir el-Bahari (AGH, Cracow 1998); R. Kozlowski, Analiza pozymetrycz-
na probek materialu kamiennego ze swi%tyni krolowej Hatszepsut w Deir el-Bahari (Cracow 1998).
168
EGYPT
2. A marl stone which is friable, heavily
cracked, with a tendency to form clods.
Composed of algae and micritic binder
with loamy additions. The pores are
irregular in shape. Numerous cracks
are present running in different direc-
tions independently of the structural
directions. Part of the cracks are filled
with gypsum and anhydrite.
The laboratory research also indicated
that there is no link between external fac-
tors and limestone texture. The reason for
the damages are entirely physical: thermal
changes caused by insolation. The dam-
ages run parallel to dressing surfaces. On
the exposed blocks a spherical erosion
phenomenon is observed. The structural
features of the stone, laminae and the
cloddish structure, are not revealed. This
conclusion concerns both groups of lime-
stone.
Further research (by R. Kozlowski in
1998) concentrated on the swelling of the
loamy compounds present in both kinds of
limestone. A correlation was observed
between the loam content, the swelling/
Fig. 1. An example of exfoliation. Block without polychromy from the northern wall of the Upper
Courtyard (Photo R. Gazda)
The author is preparing a study of the causes of damages and the most suitable methods for the conservation of dec-
orated stone blocks and their display in the walls of the temple. For the findings of laboratory research on samples taken
by the author in 1992-1998, see the typescript reports: M. Kgsy-Lewandowska, S. Krazewski, G. Jaworski, Badania probek
ze swi^tyni Hatszepsut w Deir el-Bahari (UMK, Torun 1992); J. Magiera, Analiza petrograficzna probek materialu ka-
miennego ze swi%tyni krolowej Hatszepsut w Deir el-Bahari (AGH, Cracow 1998); R. Kozlowski, Analiza pozymetrycz-
na probek materialu kamiennego ze swi%tyni krolowej Hatszepsut w Deir el-Bahari (Cracow 1998).
168