DEVELOPMENT OF SUSTAINABLE HIGH-PERFORMANCE CONCRETE USING SUPPLEMENTARY CEMENTITIOUS MATERIALS: EVALUATION OF MECHANICAL STRENGTH, DURABILITY, AND ENVIRONMENTAL PERFORMANCE

This project gives step‑by‑step guidance for evaluating sustainable high‑performance concrete (HPC) that uses supplementary cementitious materials (SCMs) such as fly ash, ground‑granulated blast‑furnace slag (GGBFS), silica fume, and metakaolin. The rapid growth of global infrastructure has pushed up demand for Portland cement, which in turn raises industrial CO₂ emissions and the energy needed to make cement. To cut these impacts, the study builds an analytical framework that looks at how different amounts of SCMs affect the mechanical, durability, and environmental performance of HPC. Key properties examined are: – Compressive strength – Flexural performance – Pore‑structure refinement – Permeability – Chloride resistance – Carbonation resistance – Drying shrinkage The work also

incorporates life‑cycle assessment (LCA) methods to measure how much embodied carbon and clinker content can be reduced. By weighing mechanical strength against environmental metrics, the research helps engineers fine‑tune mix designs for greener concrete. The resulting framework acts as a practical tool for comparing early‑age strength development with long‑term durability, and it provides systematic documentation to support sustainable material choices in modern structural projects.

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