A Survey Paper on Experimental Analysis of Fly-Ash mix Nano-Silica in Geopolymer Concrete for Economical Behavior of the Structure

This work focuses on studying the effect of fly-ash mix Nano-Silica and their combinations in Geopolymer concrete on compressive strength characteristics of high performance concrete. This work primarily deals with the compressive strength characteristics such as water absorption super plasticizer used in high performance Geopolymer concrete a set of 4 different concrete mixture were cast and tested with different cement replacement levels of Fly-ash with Nano-Silica as Geopolymer concrete addition by wt of Cement and each trial super plasticizer has been added at constant values to achieve a constant range of slump for desired work ability with a constant water-binder (w/b) ratio of 0.30. The materials used to design the mix for M20 & M30 grade of concrete are cement, sand, coarse aggregate, water, Fly-Ash and SiO2 as for Geopolymer concrete. Three specimens are tested for typical category and the mean compressive strength of three specimens is considered as the compressive strength of the specified category of concrete.