Durability of porous material to salt decay

Salt-induced decay is widely considered as opne of the main phenomenon which can seriously compromise the conservation of porous materials of the architectonic heritage. The scientific literature of the last decade focused on the principal topics proposed as responsible for the whole degradation process, as well as the different decay mechanism acting in a salt-contaminated. As a subseguent step, studies on several tecnique aimed to mitigate damage, i.e. by crystallization inhibitors, have been considered and represent a promising research field. Through the investigation of the this wide scientific literature, this paper aimd to highlight the still controversial aspects and the need of futher studies to set up appropriate and durable materials for repair and restoration