Title Is Centered and Is Bold and Capitalized in Timesnewroman 10 Point

The innovative properties of the nano materials can have advantageous application in the restoration and conservation of the cultural heritage with relation to the tailoring of new products for protection and consolidation of stone. Their potential use in this field needs to be assessed taking into account specific requirements such as effectiveness, harmfulness and durability. This paper reports on the experimental activity concerning the application of a nanosilica based product for the consolidation of stones having high porosity. The study deals with the assessment of the suitable methods and amounts of product to be applied and the determination of several basic requirements in order to evaluate the properties of the treated stone, such as the surface distribution and the penetration depth within the porosimetric network, the stone surface colorimetric parameters, the superficial strengthening effects, as well as the behaviour with respect to the capillary water penetration and vapour permeability.