BILOBROV D. Research on the impact of high temperatures on decorative and physico-mechanical properties of natural decorative stone

Given the geological and cultural significance of natural stone in various aspects of human activity, particularly in construction, stone processing, and decorative arts, the need for a deep understanding of its properties, behavior, and adaptability to extreme conditions becomes a paramount task. High temperatures that natural stone may undergo in processing and utilization significantly affect its structure and physico-mechanical properties, thereby defining the limits of its application and durability. The aim of this dissertation is to comprehensively investigate the impact of high temperatures on the physico-mechanical properties of natural stone, identify patterns and mechanisms of this influence, develop adaptive technical solutions, and explore possibilities for optimizing technological processes. Special emphasis is placed on detecting and assessing structural changes and material degradation. This study is focused on a detailed analysis of microstructural, thermal, and mechanical changes that occur in natural stone during exposure to high temperatures, aiming to investigate their impact on the material's durability and functionality. The research is conducted using a comprehensive approach that includes both laboratory experimental studies and theoretical analysis, numerical modeling, and interpretation of results. This approach will enable a deeper understanding of the fundamental processes taking place in the stone during heating and the development of optimal strategies for its use and protection.