El-Derby, Abdu. (2009). Two Example of Egyptian Alabaster Weathering Deterioration and Damage from Ancient Egyptian Buildings and Islamic Buildings in Egypt and some Recommendations of preservation. مجلة الإتحاد العام للآثاريين العرب, 10(1), 24-121. doi: 10.21608/jguaa.2009.2692
Abdu El-Derby. "Two Example of Egyptian Alabaster Weathering Deterioration and Damage from Ancient Egyptian Buildings and Islamic Buildings in Egypt and some Recommendations of preservation". مجلة الإتحاد العام للآثاريين العرب, 10, 1, 2009, 24-121. doi: 10.21608/jguaa.2009.2692
El-Derby, Abdu. (2009). 'Two Example of Egyptian Alabaster Weathering Deterioration and Damage from Ancient Egyptian Buildings and Islamic Buildings in Egypt and some Recommendations of preservation', مجلة الإتحاد العام للآثاريين العرب, 10(1), pp. 24-121. doi: 10.21608/jguaa.2009.2692
El-Derby, Abdu. Two Example of Egyptian Alabaster Weathering Deterioration and Damage from Ancient Egyptian Buildings and Islamic Buildings in Egypt and some Recommendations of preservation. مجلة الإتحاد العام للآثاريين العرب, 2009; 10(1): 24-121. doi: 10.21608/jguaa.2009.2692
Two Example of Egyptian Alabaster Weathering Deterioration and Damage from Ancient Egyptian Buildings and Islamic Buildings in Egypt and some Recommendations of preservation
Lecturer in Archaeology conservation Department, faculty of Archaeology ,south valley university , supervisor on Institute of Archaeology conservation at Luxor(Egypt)
المستخلص
Weathering and deterioration of the Egyptian alabaster were not studied enough as much as the other rocks (such as sandstone , limestone , granite and marble ) , and the negative influences ring may occur hastily because of its chemical composition so the selected two examples of the Egyptian alabaster the most important examples of using it in building in Egypt and at same time is the most insecure , were studied through several visits to sites , description and Characterization of the Egyptian alabaster Travertine) either in original sources (quarries) or in archaeological sites where samples were collected and taken to laboratory analyses and investigation ,to identify Deterioration ,Weathering and Damage such as : Constructional Defects ( Cracks and Frailty and debility structure of some ornamental architectural) , Structural Defects(the colloform structure ,Vugs and cavities and granulation), Climatic (physical) weathering and Deterioration (Discoloration deposit such as Bleaching , Gypsum formation , The soiling , Black or Dark Crust and Efflorescence and Sub florescence of Halite salt ) , Loss of stone material such as Roughening , Pittingand Back weathering due to loss of scales) , Detachment such as granular disintegration , Crumbling , flaking to contour scaling , flaking to contour scaling and Fissures independent of stone structure) and Man-made faults (erroneous restoration) . In addition to Some Recommendations of preservation , and I satisfied to put the results discussion and conclusion in comparative table form
Soliman , N. F. , Investigation of an Egyptian Alabaster Ore by Measuring its Natural Radioactivity and by NAA Using K0 Standardization and Comparator Method , Journal of Nuclear and Radiation Physics, Vol. 1, No. 1, 2006, p. 31 . ( 3 ) Sidraba I, Normandin KC, Cultrone G, Scheffler MJ , Climatological and regional weathering of Roman travertine. In: Prikryl R, Siegel P (eds) Architectural and sculptural stone in cultural landscape. Carolinum Press, Prague, 2004,pp 211–228 ; Sidraba I , Weatherability of Roman travertine. Ph.D. thesis Faculty of Material Science and Applied Chemistry, Institute of Silicate Materials, Riga Technical University, Latvia 2006 ,(unpublished) ; To¨ro¨k A , Black crusts on travertine: factors controlling development and stability. Env Geol, 2008 , 56:583–584. ( 4 ) the normally very low temperature of precipitation and extremely porous nature of travertine leads to a totally different appearance, it is not translucent and was never used in ancient Egypt , see: Klemm , D . and Klemm , R . , The building stones of ancient Egypt - a gift of its geology , African Earth Sciences 33 , 2001,p. 641. ( 5 ) Klemm , D . and Klemm , R . , op. cit. , 2001,p. 641
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