• Conducted experimental research on partial replacement of cement with nano silica (5–10%) and fly ash (15%) to develop sustainable high-performance concrete
• Performed mechanical and durability tests including split tensile strength, flexural strength, water absorption, and acid resistance to evaluate concrete performance
• Demonstrated that nano silica significantly improved tensile and flexural strength, while the combination of nano silica and fly ash enhanced durability and resistance to chemical attack
• Analyzed microstructural improvements due to pozzolanic reaction and densification, confirming reduced porosity and water permeability
• Contributed towards sustainable construction by reducing cement usage, lowering CO₂ emissions, and proving cost-effective alternatives for modern infrastructure