Patents
The invention provides an improved process for the preparation of geopolymeric material from fly ash. The process comprises crushing and grinding of raw fly ash material in a ball mill or vertical roller mill, thereafter proportioning and blending it in a mechanical mixer, followed by mixing with alkaline activator such as silicates or hydroxides of potassium or sodium and shaping it in desired shape and finally curing, at a temperature in the range of 60°- 250°C to obtain the desired product.