This paper present to study the effects of several factors on the properties of fly ash based geopolymer concrete on the compressive strength. In this preliminary experimental work different parameters were used such as Ratio of Alkine liquid to fly ash 0.40 ,0.45 and 0.50, ratio of NaOH to sodium silicate (Na 2SiO3) 2.0 and 2.5, molarities of sodium hydroxide(NaOH) 10M ,12M, 14M and 16M, Curing temperature Ambient Temperature, 600C, 900C and 1200C, Addition of Superplasticiser. A mix Proportion based on the result of preliminary investigation is to be developed for geopolymer concrete. Two concrete mixes is to be worked out: GPC Mix-1 Fly ash concrete and OPC Mix-2 Concrete Mix having OPC equivalent to amount of Cementitious Material used in GPC Mix-1. Compression test, Split tensile test, Pull out test and durability test were performed.