Evaluating the Role of Internal Factors in the Damage and the Methods of Treatment of the Limestone of Emir Hasan Mosque in Akhmim, Sohag, Egypt

The present paper examines the deterioration of the limestone of Emir Hasan Mosque as a result of internal damage factors. Tests were done and carried to determine the rate of damage to the limestone that was used in the past in Egypt. Chemical analyses were done to identify soluble salts. The study utilized optical microscopy, scanning electron microscope equipped with EDS unit, and X-ray diffraction analysis to identify the main causes of increased limestone damage rates because of being affected by internal destructive factors. The study discussed different ways to conserve separate parts through the use of one consolidated material through the study of changes to limestone during the period of treatment to determine the appropriate treatment methods.