Natural Pozzolans are an incredible basis of responsive silica and alumina needed for geopolymer synthesis as a different binder for normal Portland cement. They are accessible at a relatively low price and create a low ecological footprint through their modest mining. The micro-structural features are depend on the progressive logical methods applied so far to comprehend geo polymerization, the phase configuration, automatic and robustness belongings development. In recent years, 50 percent of the construction budget has been spent on the repair of concrete structures in the industrialized countries. This is also the case in our country, although there is no exact data available. The increasing tendency to understand the causes of concrete deterioration, its prevention, and the factors that increase the strength and resistance of concrete despite its short life of detection indicates the importance of the subject. In the construction of dams, which is an urgent need in our country, the three factors of resistance, impermeability and lifetime are all improved by the use of Pozzolan. For example, if a dam lifetime is supposed to be 50 years, the dam will last for 100 years by using Pozzolan. Use of Pozzolan in hydraulic structures will improve the structure resistance against salt and sulfate including water, getting hot and cold, and high water flow due to its physical and chemical properties.