Concrete is a widely used construction material, and there are constant efforts to enhance its mechanical and durability properties while minimizing its environmental impact. This study investigates the effects of incorporating silica fume (SF) and rice husk ash (RHA) as partial replacements for cement on the mechanical and durability properties of the concrete. SF and RHA are pozzolanic materials known for improving concrete performance when used in appropriate proportions. This experimental study prepares concrete mixtures with varying percentages of cement of 5%, 10%, 15% and 20% replaced with SF and RHA. The mixtures mechanical properties compressive strength, flexural strength and split tensile strength) are evaluated at different curing ages of 3, 7 and 28 days to assess the short-term and long-term effects. The study performs scanning electron microscopy (SEM) to investigate the mixtures durability properties, including water absorption, depth of water penetration, carbonation test and microstructure analysis. The results of compressive and flexural strengths, water permeability and water absorption tests showed that adding 15% SF and RHA to the mixtures improved concrete performance in terms of strength and durability. The SEM microstructure analysis showed that adding SF and RHA improves in concrete mixtures.