Concrete mix proportioning is a crucial process of preparing concrete and in today's era it is not sufficient to make concrete with desired workability, durability and strength but also there in a need to develop eco-friendly concrete. So to achieve an eco-friendly and thrifty concrete mixes, fly ash plays a very important role. Usually mix design is worked out using IS 10262:2009 to calculate the material's quantity, which is a tedious job. In order to reduce time for mix design calculation and make variety of mixes, three mix design software packages have been developed for standard (without chemical admixtures), high strength concrete in which chemical admixtures can be used and last in which fly ash can be used as partial replacement of cement. The packages developed are powerful tools for concrete mix design especially for those design engineers who are not well acquainted with IS codes based calculations.

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