Читать книгу Monument Future - Siegfried Siegesmund - Страница 337

Situated on a scenic hillslope overlooking the Mesopotamian plain, Mardin bears the traces of many civilizations from prehistoric to modern times. With its highly crafted historical structures, Mardin significantly contributes to the cultural heritage of Turkey. Most buildings of architectural heritage in Mardin and its surroundings are constructed with the locally quarried limestone. Like many other historical buildings, the historical structures located in Mardin are also suffering from stone deterioration. This deterioration of the structures damages their integrity, aesthetic value and structural stability. The major aim of this study is to investigate the material characterization of the limestone in which the historical structures of Mardin were constructed. In order to identify the physico-mechanical and petrographic properties of rock material, it is essential to analyze their index properties. For this purpose, limestones from different quarries were collected for laboratory studies. To determine their physical and mechanical properties, such parameters as effective porosity, water absorption, uniaxial compressive strength, thermal conductivity, volumetric heat capacity, saturation coefficient and wet to dry strength ratio of the material were studied. In addition to this, the major deterioration forms were determined. It is understood from the experimental studies that the presence of water has a great impact on the durability of the material. Moreover, it is observed that efflorescence, erosion, alveolization, scaling, and deposits are the most common weathering forms developed on the historical structures of Mardin.

Keywords: Decay, limestone, physico-mechanical properties, weathering, Mardin