INVESTIGATING THE PERFORMANCE OF A DEVELOPING NATURAL TEXTILE FOR SUSTAINABLE MASONRY STRENGTHENING

This Ph.D. thesis focuses on the analysis and application of sustainable materials for the ecological rehabilitation and retrofitting of masonry structures. The research focuses on a Natural Textile Reinforced Mortar (NTRM) system and compares its performance with the more common Fiber Reinforced Cementitious Matrix (FRCM) and Textile Reinforced Mortar (TRM) systems to evaluate their potential for enhancing structural integrity and seismic resilience while minimizing environmental impact. The experimental program includes tensile characterization of natural jute fiber strips and the evaluation of the NTRM composite system in both uncoupled and coupled configurations, with bond characterization conducted through shear-lap tests on a masonry substrate made of recovered bricks. Challenges persist in ensuring fiber-matrix compatibility and long-term durability under environmental stressors. To address these challenges and simulate real-world conditions, several specimens were subjected to thermal conditioning. Findings suggest that, while natural fibers significantly enhance the ductility and overall performance of reinforced masonry, further research is needed to optimize configurations and treatments for improved effectiveness and durability. This research contributes to the growing body of knowledge on sustainable construction materials, demonstrating that natural fiber-reinforced composites can be a viable and eco-friendly solution for the structural rehabilitation of masonry buildings. The results provide a benchmark comparison with commercial materials, emphasizing the practical applicability of these innovative systems.