Generation, Transportation and Utilization of Indian Coal Ash

This chapter describes the generation of coal ash from Indian thermal power plants, its stabilization for pipeline transportation and its utilization as fly ash bricks. For the disposal of coal/fly ash (high concentration) a detail investigation of rheological behaviour is required. The rheological characteristics of fly ash (FA) samples are studied with some natural and synthetic surfactant systems. Presence of surfactant reduces viscosity of the slurry and also increases the wetting properties of solid particles. Moreover, the surfactant role of bottom ash as a viscosity reducing agent is also discussed herewith. Furthermore, the detailed characterization and its utilization as fly ash bricks (FAB) have also been discussed.