Concrete is one of the most widely used materials in the construction industry. With the continuous development of construction technologies and materials, recent research has focused on utilizing agricultural waste as an alternative and sustainable material to improve concrete properties and reduce the environmental impacts associated with cement production. Agricultural ash, produced by burning plant residues such as rice husk ash, palm leaf ash, and sugarcane bagasse ash, is considered a promising material for concrete production due to the relatively high silica content found in some types of ash, which provides potential pozzolanic properties. This study aims to evaluate the effectiveness of using agricultural ash in improving concrete properties by investigating the effects of incorporating different percentages of agricultural ash as a partial replacement for cement in concrete mixtures. Several concrete specimens are prepared using different replacement percentages while maintaining the other mixture components as constant as possible to determine the optimum percentage that provides the best concrete performance. The study focuses on evaluating the mechanical properties of concrete, including compressive strength, splitting tensile strength, and flexural strength. In addition, certain physical properties, such as density, water absorption, and workability, are investigated to determine the influence of agricultural ash on the performance of both fresh and hardened concrete. The effectiveness of agricultural ash mainly depends on its chemical composition, particle fineness, and combustion conditions. The silica present in certain types of ash can react with calcium hydroxide produced during cement hydration to form additional calcium silicate hydrate (C-S-H) compounds. These compounds contribute to improving the internal structure of concrete, reducing porosity, and increasing its long-term strength. However, using excessive amounts of ash or low-quality ash may reduce early-age strength or negatively affect workability. Therefore, proper ash processing and determining the optimum replacement percentage are essential factors for the successful application of this technique. The expected results of this study may help determine the effectiveness of agricultural ash in improving the mechanical and physical properties of concrete and identify suitable replacement percentages that achieve a balance between strength, durability, and workability. Furthermore, utilizing agricultural waste may reduce cement consumption, lower carbon emissions associated with cement production, and provide an effective way to reuse agricultural residues instead of disposing of them through environmentally harmful methods. The significance of this research lies in supporting sustainable construction practices by transforming agricultural waste into valuable materials for the construction industry. It also contributes to reducing dependence on conventional materials, improving the efficiency of natural resource utilization, and minimizing environmental pollution. In conclusion, the use of agricultural ash in sustainable concrete production represents a promising approach to developing environmentally friendly construction materials. Evaluating the properties of agricultural ash and determining appropriate replacement percentages are essential steps toward utilizing its pozzolanic characteristics and improving concrete performance while achieving structural engineering and environmental sustainability requirements.