Development of geopolymer from pond ash thermal power plant waste : novel constructional materials for civil engineers Utilization of waste materials has become a global challenge since they endanger our environment. In this book the authors demonstrate how to utilize fly ash pond ash (waste materials from thermal power plants) to produce a novel material called Geopolymer (GP). Red mud slags etc. are mixed with fly ash to produce GP with enhanced strength. As shown in a few European countries GP can replace cement and some permanent structures constructed with GP are now appearing in a few advanced countries. GP and geopolymer concrete is considered suitable for the construction of roads buildings etc. and will eventually fully or partially replace cement. The book highlights the mechanism of the formation of GP from pond ash. Properties of structures made with GP concrete are found to be comparable to those made with cement concrete. Systematic investigations are presented to understand the chemistry of GP formation with pond ash materials. Performances of these materials above ambient temperature as well as with different environmental conditions are also evaluated