Paper Title
Comprehensive Assessment and Multi-Criteria Analysis of Conventional and Sustainable Innovative Materials for Repairing and Protecting Concrete Structures: Technical Performance, Cost, Environmental Impact, and Future Availability

Abstract
Concrete structures are vital for modern infrastructure but are susceptible to deterioration due to environmental exposure, chemical reactions, mechanical stresses, and aging. This study provides a comprehensive analysis of conventional and sustainable materials used for repairing and protecting concrete structures. The assessment covers technical performance, cost efficiency, environmental impact, and long-term availability. The research explores coatings and adhesives, comparing traditional materials with innovative sustainable alternatives, focusing on their ability to enhance durability, reduce carbon emissions, and improve cost-effectiveness. Findings aim to guide engineers, contractors, and policymakers in selecting optimal repair materials based on sustainability and performance criteria. Keywords - Concrete protection, Repair materials, Coatings, Adhesives, Sustainability, Environmental impact