INFLUENCE OF SILICATE COMPOUNDS ON THE STRUCTURAL STRENGTHENING OF CERAMIC MASONRY ELEMENTS IN HISTORIC BUILDINGS

This study investigates the peel strength of bricks treated with silicate-based formulations designed to enhance durability. It examines the effects of seasoning time and the type of formulation—both undiluted and water-diluted—on the mechanical properties of the bricks. Particular attention was given to how dilution impacts the penetration of the material and its protective properties. The results indicate that peel strength is largely influenced by the bricks' physicochemical characteristics, including porosity, absorbability and micro-cracks. The findings confirm that silicate compounds with hydrophobic properties significantly improve brick durability by protecting against atmospheric agents such as moisture and environmental pollutants. Silicate impregnation not only enhances the structural integrity of bricks but also preserves their aesthetic value over time, improving resistance to erosion and degradation. These properties are especially critical for historically significant buildings, where maintaining material authenticity and stability is paramount. The study emphasizes the importance of selecting and applying strengthening preparations carefully to achieve optimal results. Undiluted formulations demonstrated superior efficacy in enhancing mechanical performance, particularly after prolonged seasoning periods. Nonetheless, in specific cases, diluted preparations offered advantages, highlighting the need for tailored, comprehensive pre-application studies. These results underscore the critical role of silicate compounds in brick conservation and pave the way for further research to optimize their use in preservation practices.