The document discusses an experimental study on the effects of using agricultural waste, specifically wood ash, sugarcane bagasse ash, and rice husk ash, as partial replacements for cement in concrete to enhance compressive strength. The study evaluated different replacement percentages (4%, 8%, 12%, and 16%) and analyzed the compressive, flexural, and tensile strengths after 7, 14, and 28 days of curing. The findings indicate that while certain levels of waste materials can improve strength properties, excessive replacement may negatively impact the concrete's performance.