ORIGINAL_ARTICLE
LIBS TOOL TO DIAGNOSE THE EGYPTIAN DETERIORATED WALL PAINTINGS DURING LASER CLEANING PROCESS, AN EXPERIMENTAL STUDY
The wall painting surfaces represent the main challenge for the laser cleaning techniques. Theobjective of this work has been the study of the laser cleaning technique when applied to wallpaintings. In particular, this study has been devoted to understanding how the characteristics of thelaser apparatus and its specific use are linked with the nature of the substances to be removed fromthe painting. A number of artificially wall paintings were selected with paint layers that werecomposed of different pigments and covered with different dirties. In this work the feasibility of lasercleaning for the removal of dirties from the wall painting surfaces using Q-switch Nd:YAG laseroperating at two different wavelengths: in the infra-red and in the visible (1064 and 532 nm) ispresented. The effectiveness of the cleaning process was monitored by following the disappearancefrom the LIBS spectra of the deterioration aspects elements during successive laser shots. The aimof this work is focus on the definition of the experimental boundary conditions in which laser cleaningcan be safely applied in cleaning of the deteriorated wall paintings.
https://ejars.journals.ekb.eg/article_7482_5fe2ae3a59fd864c6b35c03b92695d4e.pdf
2011-12-01
1
14
10.21608/ejars.2011.7482
Wall Painting
LIBS
Cleaning
diagnose
Laser
Brania
A
1
Conservation Dept., Faculty of Archaeology, Cairo Univ.
AUTHOR
Imam
H.
2
National Institute of laser Enhanced Sciences,Cairo Univ.
AUTHOR
Elsayed
K.
3
Physics Dept., Faculty of Sciences, Cairo Univ
AUTHOR
Elrashdy
R.
4
National Institute of laser Enhanced Sciences, Cairo Univ.
AUTHOR
ORIGINAL_ARTICLE
STUDY OF DURABILITY OF ALABASTER USED IN THE TEMPLES OF LUXOR AND KARNAK AND LABORATORY EVALUATION OF CONSOLIDATION TREATMENT
Alabaster is an ornamental stone that was widely used in ancient Egypt and it had a lot ofdeterioration factors. The present paper deals with two types of alabaster that located at WadiSannur and Wadi El Assuity, and their durability and geotechnical characteristics. Thesecharacteristics were examined before and after artificial ageing using simple analytical methods.Physical and mechanical properties were carried out on samples from quarries providing eachtype and the same samples were then exposed to artificial ageing with sodium chloride andheat which effectively produced deterioration comparable with that in Luxor and Karnaktemples. The results were tested on different alabaster objects from Luxor and Karnak templeswhere the use of alabaster. The study was also aimed to evaluate the efficiency of the variouscommercial silane-based and acrylic products in laboratory in order to recommend theprotective treatment for the conservative treatment of the alabaster. To fulfill this goal a soakingcharacterization and accelerated ageing tests were performed. Quite satisfying results havebeen observed, except for the original color of the alabaster samples and for particular conditionof application.
https://ejars.journals.ekb.eg/article_7484_35220445e601c81c3689d7cfc8624d5a.pdf
2011-12-01
15
32
10.21608/ejars.2011.7484
Alabaster
Wadi Sannur
Wadi Assiuty
Ageing
Consolidant
Abd El-Tawab
N.
1
Conservation dep., Faculty of Archaeology, South Valley Univ., Qena, Egypt
AUTHOR
Askalany
M.
2
Geology Dep., Faculty of Science South Valley Univ.,
AUTHOR
ORIGINAL_ARTICLE
STUDY OF DETERIORATION AND DEGRADATION OF OVERLAID WOODEN DOORS IN OTTOMAN CARAVANSARY IN BULAQ,CAIRO, EGYPT
This paper presents an analytical study of the deterioration and degradation phenomena of twooverlaid wooden doors from Ottoman period caravansaries: (A) Hassan Pasha caravansary- Xcentury BC - XVI century AD and (B) Ibrahim Sarhan caravansary- X Century BC- XVI CenturyAD in Bulaq, Cairo, Egypt. To identify the deterioration and degradation in the types of woodused, microbiological study, Scanning Electron Microscopy coupled with X-ray EnergyDispersive (SEM-EDX), X-ray Diffraction (XRD) were conducted. The data obtained were usedto evaluate the status of conservation of overlaid wooden doors (wood and Iron) and to identifythe suitable treatment methods. parts.
https://ejars.journals.ekb.eg/article_7486_343f3efbb2e03ab17683c9d03a525eb1.pdf
2011-12-01
33
40
10.21608/ejars.2011.7486
wood
iron
Overlaid
Corrosion
salts
Biodeterioration
biodegradation
XRD
Ali
N.
1
Conservation dept., Faculty of Archaeology, Fayoum University, Egypt
LEAD_AUTHOR
ORIGINAL_ARTICLE
CHARACTERISTICS OF BUILDING MATERIALS EXPOSED TO GEOENVIRONMENTAL IMPACTS IN MAKAAD RADWAN, OTTOMAN CAIRO, EGYPT
airo. It was built in the early XVII century (1650 AD). The building is affected by severedeterioration phenomena and patterns of damage which occurred during the time. Thesedeterioration and damages are mainly due to foundation problems, subsoil water and also to theearthquake that affected the whole of Greater Cairo in October 1992. Chemical composition,physical and petrographic properties of the building materials at Makaad Radwan includingmasonry, stone, mortars, decorated elements and other constituents of the monument werestudied to identify their characteristics. Evaluation of the site characteristics and foundation soilcondition including description of the soil texture and composition as will as the possiblesources .The impacts of the foundation condition are discussed (e.g. karstrficaion andsalinization).
https://ejars.journals.ekb.eg/article_7487_943ff5660479c03dd42122dc415f2bf8.pdf
2011-12-01
41
51
10.21608/ejars.2011.7487
Mekaad Radwan, Chemical Composition, XRD, Physical Properties
Petrography
Ali
M.
1
Conservation dep., Faculty of Archaeology, Cairo Univ., Egypt,
AUTHOR
Alenbaawy
M
2
Geology Dep., Faculty of Science Cairo Univ., Egypt
AUTHOR
Moussa
A
3
Conservation dep., Faculty of Archaeology, Cairo Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
AN ANALYTICAL STUDY: IDENTIFICATION AND BIODEGRADATION CHARACTERISTICS OF ANCIENT EGYPTIAN WOODEN PAINTED GRAIN STORE, EGYPTIAN MUSEUM, CAIRO, EGYPT - PART-I
Current study comprises two parts, Part-I, the subject of this paper, contains analytical studyof ancient Egyptian painted grain stores using some scientific techniques, The followingresearch (Part II) deals with the restoration and conservation of the same object. In thispaper, ancient Egyptian painted grain stores have been studied, using (Light Microscope -SEM - EDX- X-ray FTIR - chemical analysis of cellulose, and biological study) in order todetermine their mineralogical and chemical composition and evaluate how these pigmentswere affected by air pollution .Gypsum was detected in the examined plaster and pigmentssamples which indicates the effect of sulfur as a pollutant on the deterioration of the paintedwooden model, The detection of halite in all the studied samples indicates the effect of badstoring . Light microscope was used to identify the type of wood and infection. SEM indicatesthe effect of fungi and bacteria on the painted wooden grain store, in addition to weakness,cracks, and losing pigments in many parts.
https://ejars.journals.ekb.eg/article_7488_565f913df7e48d77418fc0efdabbb8af.pdf
2011-12-01
53
59
10.21608/ejars.2011.7488
wood
Pigment
deterioration
biodegradation
XRD
SEM-EDX
Ali
N.
1
Conservation dept., Faculty of Archaeology, Fayoum University, Egypt
AUTHOR
Abd El Aal
Sh
2
Conservation dept., Faculty of Archaeology, Fayoum University, Egypt
AUTHOR
ORIGINAL_ARTICLE
A ROYAL STONE DECREE (DATED 948H.) IN KALYAN MOSQUE OF BUKHARA
Bukhara is rich in many of the architectural buildings that dated back to different historicalperiods, in addition they are decorated with a wide range of different inscriptions, Applied oninscriptions include many documentary texts. It is remarkable that these texts include A royaldecree executed in the stone, on the south side of the portal-pishtaq -of Kalyan Mosque. Thisdecree is one of the rarest examples of royal decrees found inscribed on the buildings in CentralAsia, in general, and in architecture of Bukhara, in particular, especially as most of the decreesknown from region of the kind called yarlîqs mostly kept now in the archives of Central Asia.
https://ejars.journals.ekb.eg/article_7490_052450661399e1f5a12ca6ada3742b53.pdf
2011-12-01
61
65
10.21608/ejars.2011.7490
Royal stone decree
Kalyan Mosque
Bukhara
Nasta'liq script
Ebaid
Sh.
1
Islamic dept. Faculty of Archaeology, Cairo University, Egypt
LEAD_AUTHOR
ORIGINAL_ARTICLE
THE OTTOMAN INFLUENCES ON WEST TRIPOLI THROUGH FOUR INSCRIPTIONS PRESERVED IN ASSARAYA ALHAMRA'A MUSEUM
This study deals with the Ottoman Influences on Tripoli in Arts, such as decorations,Antiques, and inscriptions which need more studies. The research tries to show theseinfluences through four inscriptions which are translated and published for the first time. Twoof them were written in Turkish language. Many kinds of Ottoman scripts, like Thuluth,Alenstaliq and Tughra'a were used in these inscriptions. The research proved that theOttomans have interested in religious and military buildings in West Tripoli. The decorationassociated with the inscriptions has ottoman features, like Romi decoration, Lily flower,blooming flower, and the Ottoman flags. This research is considered an addition to theprevious researches that studied the Ottoman influences on its subsidiaries states.
https://ejars.journals.ekb.eg/article_7491_a299ae60efed0a0cdbdaa775096840d6.pdf
2011-12-01
67
88
10.21608/ejars.2011.7491
Ottoman
Tripoli
Inscriptions
Thuluth
Alenstaliq
Tughra'a
Bab-Elbahr
Artillery
Khairallah
G.
1
Archaeology dept., Faculty of Arts, Tanta University
AUTHOR
ORIGINAL_ARTICLE
THE LATE MIDDLE KINGDOM STELA OF THE DISTRICT OFFICIAL PESESH
This article deals with a sandstone funerary stela from Qadaya-magazine at Karnak. It belongsto the District Official Pesesh. The stela was found at Rizeikat and measures 69 cm high and 42cm width. The inscriptions contain some interesting features in the orthograph of the epithetsand offering formulae. On the basis of stylistic features, the stela can be dated to the late MiddleKingdom.
https://ejars.journals.ekb.eg/article_7492_5e4fa002a545915520b372e192f55df1.pdf
2011-12-01
89
96
10.21608/ejars.2011.7492
District official Pesesh
Rounded-topped stela
Late Middle Kingdom
Sobek-hotep
Faheed
H.
1
Lecturer Department of Egyptology, Faculty of Arts, Sohag University, Egypt
LEAD_AUTHOR