Academic literature on the topic 'The Qal'a of Bani Hammad'

In order to define with precision, the physicochemical characteristics of the architectural ceramic exhumed from the Qal'a of Bani Hammad’s site (inscribed on the UNESCO’s World Heritage List in 1980), our study was conducted on a set of ceramics. The first analyses were focused on the color of the glazes, by optical absorption spectrophotometry (also called optical absorbance spectroscopy), on the texture by X-Ray diffraction, and on the elemental composition of the various constituent stages of these glazes and their terra cotta, by scanning electron microscopy and X-Ray fluorescence. Indeed, the study combining optical absorbance spectroscopy and X-Ray fluorescence enabled us to determine the origin of the monochromic green coloring of the glazes in some samples. This coloring can be attributed to the presence of the Cu²⁺ chemical element; but these glazes darkened due to the high iron content they contain. This could be explained by an intentional addition of iron, in tin-opacified leaded glazes, baked in an oxidizing atmosphere and put on a limestone-rich marlacious paste. The chemical and mineralogical analyses of all shards show that their paste is calcareous. This dataset will be exploitable for re-creation experiments. It also represents a first exploitable referential system, for potential comparisons with other samples belonging to other Algerian sites and different periods of time.

In order to define with precision, the physicochemical characteristics of the architectural ceramic exhumed from the Qal’a of Bani Hammad’s site (inscribed on the UNESCO’s World Heritage List in 1980), our study was conducted on a set of ceramics. The first analyses were focused on the color of the glazes, by optical absorption spectrophotometry (also called optical absorbance spectroscopy), on the texture by X-Ray diffraction, and on the elemental composition of the various constituent stages of these glazes and their terra cotta, by scanning electron microscopy and X-Ray fluorescence. Indeed, the study combining optical absorbance spectroscopy and X-Ray fluorescence enabled us to determine the origin of the monochromic green coloring of the glazes in some samples. This coloring can be attributed to the presence of the Cu2 chemical element; but these glazes darkened due to the high iron content they contain. This could be explained by an intentional addition of iron, in tin-opacified leaded glazes, baked in an oxidizing atmosphere and put on a limestone-rich marlacious paste.
 The chemical and mineralogical analyses of all shards show that their paste is calcareous. This dataset will be exploitable for re-creation experiments. It also represents a first exploitable referential system, for potential comparisons with other samples belonging to other Algerian sites and different periods of time.

The protection of urban heritage is not an abstract intellectual theory, as it resembles any planning process subject to a set of factors. Those factors are determined in a progressive and continuous way by the actors of this field. If the political decision was considered the main motor of its dimensions and objectives, the technical factor is not less important, it is embodied these dimensions and objectives. In this context this study came to approximate between the Points of View the first and the second the area of conservation the World archaeological site Al Qal?a Bani Hammed in Algeria (PPMVSA). Although their theoretical reference is the same, but technical evaluation has different in determining the protection perimeter, using the geographic information system (GIS) and multiple-criteria decision analysis (MCDA) to systematically and precisely analyse the factors controlling the determination of the archaeological protection area, we are reducing the percentage of biased points of view and we propose an alternative to protection plan based on precise scientific principles and standards.

the Zab is one of the most important regions in history of Maghreb, This vast geographical area, known as the province of Numidia, has witnessed historical events especially after the Islamic conquest and the calling of khawarij in region and external vocation in metropolis and cities , The province did not know the stability of capital during the Middle Ages as a result of the political situation of the country, where the capitals changed five times starting from the first capital Adhana, and tobna, msila, then the castle of Bani Hammad and finally the city of Biskra after shrinking area of the province to include the villages of Biskra only.