Partial Replacement of Fine Aggregate with E-Waste and Cement with Bagasse Ash in Concrete

Concrete is essential in modern construction, but its environmental impact, especially from cement production, has driven the search for sustainable alternatives. This study examines the use of E-waste and sugarcane bagasse ash (SCBA) as partial replacements for fine aggregate and cement in M20-grade concrete. Both are abundant waste materials with properties suitable for concrete. The optimal mix—10% E-waste and 10% SCBA achieved a compressive strength of 21.4 N/mm², split tensile strength of 2.56 N/mm², and flexural strength of 3.85 N/mm². These results show that E-waste and SCBA can enhance concrete sustainability without compromising strength, supporting eco-friendly construction practices.