<p>• Investigated the development of high-performance concrete by partially replacing cement with metakaolin in compliance with ASTM standards, focusing on mechanical and durability properties.</p><p><br>	•	Achieved higher compressive strength at 28 and 56 days, along with reduced permeability, lower chloride ion penetration, and enhanced resistance to sulfate attack.</p><p><br>	•	Addressed the slight reduction in workability through the use of superplasticizers, ensuring practical applicability while improving long-term strength and durability.<br></p>