Maintainability: We can presume that Fly Ash is a mixed drink of undesirable and risky components like silica, mercury, iron oxides, calcium, aluminum, magnesium, arsenic, and cadmium. It presents genuine climate and wellbeing perils for an enormous populace who live in the close by space of the plants. Be that as it may, the block is in an ideal situation, during the interaction of block making the poisons related with Fly Ash gets changed into a non-harmful item. The blending of with lime at standard temperature prompts the hydration of calcium silicate and development of a thick composite addition block. In this way it has the capability of being a decent structure material. In India around 100 million tons of Fly Ash is created every year by the various nuclear energy stations, which could cause genuine pollution of land, groundwater, and air however because of the act of Fly Ash blocks now it is free from any and all harm.