No abstract

Historic buildings are more closely tied to the ground than modern buildings. They are more porous, take water from the ground, transport it through their structure and evacuate it, generating side effects such as oxidation and crumbling. Walls and floors are the point of exchange for these reactions. An increase in the soil moisture could lead to a greater circulation of dissolved salts, and therefore to a harmful crystallization on the decorated surfaces but also to a greater instability of the soil. Our objective in this work is the choice of a plaster coating to limit damage due to climatic factors and mainly humidity. We are characterized the coating compositions firstly, and then proposed plaster based formulations. The choice of the best plank may be made by carrying out Karsten tube penetration and capillary absorption tests.

Historical monuments in Morocco represent a heritage, of great value in terms of its history, culture, civilization and identity. This heritage is a non-renewable resource considered as one of the essential aspects of modern communities and contributes to the sustainable development of the country. Unfortunately, these monuments are subject to pathologies due to several factors that threaten its sustainability. The choice of the type of intervention thus becomes a strategic decision that has a crucial impact on the historic monument. Indeed, it requires a global approach because it involves simultaneously a multitude of stakeholders and a multitude of criteria (technical, environmental, social, political or administrative, human etc …). Several models in the literature have focused on the multi-criteria decision support process. This work proposes a decision support method based on the Analytic Hierarchy Process (AHP) method, in order to apply it to a choice of an intervention strategy on historic monuments. Then, this approach is applied to the case of the enclosure of the old medina of Salé.