ABSTRACT
Fly ash is generally used as replacement of cement, as an admixture in concrete, and in manufacturing of cement. Concrete containing fly ash as partial to complete replacement of fine aggregate will improve its strength on long-term basis. In this investigation fly ash is used as sand replacement material. The material mix of proportion 1:1.58:3.2:0.48. Each category comprises of various percentages of sand replacement material in increasing order i.e. 20%, 40%, 60%, 80% and 100%. The workability is maintained constant range for all mixes. Strength characteristics such as compressive strength split tensile strength and modulus of elasticity of concrete mixes are found out for 7, 14 and 28 days curing period and results are analyzed.
